Explore topic-wise MCQs in Arithmetic Ability.

This section includes 410 Mcqs, each offering curated multiple-choice questions to sharpen your Arithmetic Ability knowledge and support exam preparation. Choose a topic below to get started.

151.

is an instrument which measures the insulation resistance of an electric circuit relative to earth and one another,

A. Meggar
B. Tangent galvanometer
C. None of the above
D. Current transformer
Answer» B. Tangent galvanometer
152.

If in a pin-jointed plane frame (m r) > 2j, then the frame iswhere m is number of members, r is reaction components and j is number of joints

A. stable and statically indeterminate
B. stable and statically determinate
C. none of the above
D. unstable
Answer» B. stable and statically determinate
153.

An electron of mass m kg and having a charge of e coulombs travels from rest through a potential difference of V volts. Its kinetic energy will be

A. meV Joules
B. eV Joules
C. V / me Joules.
D. me / V Joules
Answer» C. V / me Joules.
154.

A car is rtyining at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?

A. Eyes
B. Clutch
C. Steering wheel
D. Needle of the speedometer
Answer» E.
155.

Determine the two\'s-complement of each binary number.00110 00011 11101

A. 00111 00010 00010
B. 11001 11100 00010
C. 11010 11101 00011
D. 00110 00011 11101
Answer» D. 00110 00011 11101
156.

A copper wire of length l and diameter d has potential difference V applied at its two ends. The drift velocity is vd. If the diameter of wire is made d/3, then drift velocity becomes

A. vd / 9
B. 9 vd
C. vd
D. vd /3
Answer» D. vd /3
157.

The Transfer function of the system is used to determine:

A. The type of the system
B. The output for a given input
C. The steady state gain
D. The input for a given output
Answer» C. The steady state gain
158.

Dynamic plate resistance of pentode is of the order of

A. 10 KΩ
B. 1 KΩ
C. 1M Ω
D. 100 KΩ
Answer» D. 100 KΩ
159.

A father said to his son, "I was as old as you are at the present at the time of your birth". If the father"s age is 38 years now, the son"s age five years back was:

A. 14 years
B. 19 years
C. 33 years
D. 38 years
Answer» B. 19 years
160.

Father is aged three times more than his son Ronit. After 8 years, he would be two and a half times of Ronit"s age. After further 8 years, how many times would he be of Ronit"s age?

A. 2 times
B. (5/2)times
C. 3 times
D. 3 times
Answer» B. (5/2)times
161.

You are given a question and two statements. Identify which of the statements is/are sufficient to answer the question._x005F_x000D_ Question:_x005F_x000D_ What is the total age of the sisters 10 years from now?_x005F_x000D_ Statements:_x005F_x000D_ 1. Lina is 20 years old now._x005F_x000D_ 2. Lina's sister's age is twice that of the age of Lina.

A. Statement 1 alone is sufficient.
B. Statements 1 and 2 together are not sufficient.
C. Statement 2 alone is sufficient.
D. Statements 1 and 2 together are sufficient.
Answer» E.
162.

When Raj Tarun was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Raj Tarun's brother is 6 years older than Raj Tarun and his mother is 3 years younger than his father, how old was Raj Tarun's sister when Raj Tarun was born ?

A. 5
B. 10
C. 15
D. 8
Answer» C. 15
163.

What is the age of the eldest sister if, the sum of ages of 5 sisters born at the intervals of 3 years each is 50 years?

A. 14 yrs
B. 4 yrs
C. 18 yrs
D. 16 yrs
Answer» E.
164.

When I was 24, my mother was twice my age. Now I am 44, how old is my mother?

A. 84
B. 48
C. 68
D. 88
Answer» D. 88
165.

When I was married 10 years ago my wife is the 6th member of the family. Today my father died and a baby born to me.The average age of my family during my marriage is same as today. What is the age of Father when he died ?

A. 50 yrs
B. 60 yrs
C. 70 yrs
D. 65 yrs
Answer» C. 70 yrs
166.

When Ram was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Ram's brother is 6 years older than Ram and his mother is 3 years younger than his father, how old was Ram's sister when Ram was born ?

A. 6 years
B. 8 years
C. 10 years
D. 12 years
Answer» D. 12 years
167.

What is the age of Teja? _x005F_x000D_ A: Four years ago, Raju was as old as Teja is at present._x005F_x000D_ B: Sita’s present age is two times of Raju’s present age._x005F_x000D_ C: The average age of Teja and Sita is 19 years.

A. Any two statements are sufficient to give answer
B. Only C is sufficient
C. All of three statements are necessary to give answer
D. Even using all the three statements answer cannot be found
Answer» D. Even using all the three statements answer cannot be found
168.

Two boys are playing on a ground. Both the boys are less than 10 years old. Age of the younger boy is equal to the cube root of the product of the age of the two boys. If we place the digit representing the age of the younger boy to the left of the digit representing the age of the elder boy, we get the age of the father of the younger boy. Similarly, we place the digit representing the age of the elder boy to the left of the digit representing the age of the younger boy and divide the figure by 2, we get the age of the mother of the younger boy. The mother of the younger boy is younger than his father by 3 years. Then, what are the ages of elder and younger boys ?

A. E = 15 & Y = 3
B. E = 14 & Y = 12
C. E = 40 & Y = 22
D. E = 4 & Y = 2
Answer» E.
169.

Tom's father is thrice as old as Tom. 10 years ago Tom's father's age was 7 times his age. What is Tom's current age? _x005F_x000D_  _x005F_x000D_

A. 17 years
B. 16 years
C. 15 years
D. 14 years
Answer» E.
170.

Two thirds of my current age is the same as three-fourths of that of one of my cousins. My age three years ago will be his age four years hence. My current age is ___ years.

A. 72
B. 63
C. 54
D. 81
Answer» C. 54
171.

The twice of sum of the ages of a father and his son is 8 times the age of the son. If the average age of the father and the son is 30 years, what is father's age ?

A. 42 yrs
B. 45 yrs
C. 36 yrs
D. 38 yrs
Answer» C. 36 yrs
172.

The total of the ages of Ashok, Akbar and Anil is 65 years. What was the total of their ages six years ago ?

A. 59
B. 43
C. 57
D. 47
Answer» E.
173.

There were 24 studentsina class. One of them, who was 18 years old, left the class and his place was filled up by a new comer.Ifthe average of the class was thereby lowered by 1 month, the age of new comer is-

A. 14 years
B. 15 years
C. 16 years
D. 17years
Answer» D. 17years
174.

Three years ago, the average age of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. The present age of the baby is

A. 2 years
B. 2.4 years
C. 3 years
D. 1.5 years
Answer» B. 2.4 years
175.

Three years from now Dharitri's age will be eight years less than twice Eunice's age. The sum of their present ages is 61 years. What is Dharitri's present age?

A. 41 yrs
B. 39 yrs
C. 36 yrs
D. 43 yrs
Answer» C. 36 yrs
176.

The sum of the present ages of two cousins is 46 years. Eight years ago, the elder one was twice as old as the younger one. What is the present age of the elder cousin?

A. 22 yrs
B. 30 yrs
C. 28 yrs
D. 26 yrs
Answer» D. 26 yrs
177.

The sum of the present ages of a father and his son is 70 years. Five years ago, father's age was 5 times the age of the son, so now the son's age will be?

A. 12
B. 14
C. 15
D. 19
Answer» D. 19
178.

The total age of A and B is 12 years more than the total age of B and C. C is how many years younger than A ?

A. 12
B. 13
C. 14
D. 15
Answer» B. 13
179.

The sum of the present ages of a father and his son is 60 years. five years ago, father's age was four times the age of the son. so now the son's age will be:

A. 5
B. 10
C. 15
D. 20
Answer» D. 20
180.

The sum of the present ages of a father and his son is 60 yrs. Six years ago, fathers age was five times the age of the son. After 6 yrs, son's age will be

A. 20 yrs
B. 21 yrs
C. 15 yrs
D. 19 yrs
Answer» B. 21 yrs
181.

The sum of the present ages of a father and his son is 126 years. 8 years ago their respective ages were in the ratio of 7 : 4. After 7 years what will be the ratio of ages of father and son?_x005F_x000D_

A. 0.97152777777778
B. 0.71597222222222
C. 1.1388888888889
D. 1.4326388888889
Answer» C. 1.1388888888889
182.

The sum of the current ages of A and B is 77 years. Seven years ago A was 2.5 times as old as B. What is A's present 4 age?_x005F_x000D_  _x005F_x000D_

A. 50 years
B. 54 years
C. 48 years
D. 52 years
Answer» E.
183.

The sum of the ages of Rohit and Ankit is 78. Rohit's age is twice the age of Ankit. What is the age (in years) of Rohit?

A. 26
B. 52
C. 54
D. 48
Answer» C. 54
184.

The sum of the ages of Ram and Shyam is 49. The difference between the age of Shyam and twice the age of Ram is 8. What is the age (in years) of Ram?

A. 30
B. 20
C. 19
D. 29
Answer» D. 29
185.

The sum of the ages of husband and wife at present is 56. Ten years ago the product of their ages was 320. What is the age of the husband and the wife?

A. 28, 28
B. 32, 24
C. 30, 26
D. 29, 27
Answer» D. 29, 27
186.

The sum of the ages of husband and wife at present is 60. Four years ago the ratio of their ages was 7:6. What is the age of the husband?

A. 28 years
B. 32 years
C. 42 years
D. 38 years
Answer» C. 42 years
187.

The sum of the ages of husband and wife at present is 100. Ten years ago the ratio of their ages was 9:7. What is the age of the husband?

A. 45 years
B. 55 years
C. 65 years
D. 40 years
Answer» C. 65 years
188.

The sum of the ages of father and son at present is 33. Two years ago the product of their ages was 28. What is the age of the father and the son?

A. 26, 7
B. 30, 3
C. 29, 4
D. 32, 1
Answer» C. 29, 4
189.

The sum of the ages of brother and sister at present is 21. Five years ago the product of their ages was 28. What is the age of the brother and the sister?

A. 9, 12
B. 6, 15
C. 7, 14
D. 8, 13
Answer» B. 6, 15
190.

The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. what is the age of the youngest child ?

A. 4
B. 8
C. 10
D. None
Answer» B. 8
191.

The sum of the ages of father and a son presently is 70 years. After 10 years, the son's age is exactly half that of the father. What are their ages now?

A. 45 years, 25 years
B. 50 years, 20 years
C. 47 years, 23 years
D. 50 years, 25 years
Answer» C. 47 years, 23 years
192.

The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age og the youngest child ?

A. 8 yrs
B. 16 yrs
C. 6 yrs
D. 4 yrs
Answer» E.
193.

The sum of present age of father and his son is 60 yrs. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be?

A. 45
B. 25
C. 20
D. 33
Answer» D. 33
194.

The sum of ages of 4 children born at intervals of 4 years each is 60. What is the age of the youngest child?

A. 7
B. 9
C. 10
D. 12
Answer» C. 10
195.

The sum of ages of Ram and his son is 48. If his uncle's age is also included the average becomes 40. What is the age of Ram's uncle?

A. 48
B. 50
C. 72
D. 34
Answer» D. 34
196.

The ratio of the present ages of Reena and her husband is 4 : 5. 8 years from now, ages of her husband and her son will be in the ratio 24 : 9. If the present age of Reena is 32 years, then what will be her son’s present age (in years)?_x005F_x000D_

A. 12
B. 15
C. 10
D. 8
Answer» D. 8
197.

The ratio of the present ages of Piyush and Bharat is 11 : 13. 15 years ago, the ratio of ages of Piyush and Bharat was 17 : 21. What is the present age (in years) of Piyush?_x005F_x000D_

A. 66
B. 63
C. 51
D. 78
Answer» B. 63
198.

The ratio of the present ages of Aman and Ankit is 2 : 1 and the sum of their present ages is 72 years. What will be the Aman's age (in years) after 6 years?

A. 30
B. 48
C. 52
D. 54
Answer» E.
199.

The ratio of present ages of X and Y is 4:5. Which of the following can't be the ratio of ages of X and Y, 20 years ago ?

A. 0.086805555555556
B. 0.34375
C. 0.38194444444444
D. 0.12847222222222
Answer» D. 0.12847222222222
200.

The ratio of the ages of Maala and Kala is 4 : 3. The total of their ages is 2.8 decades. The proportion of their ages after 0.8 decades will be [1 Decade = 10 years]

A. 0.16875
B. 0.50763888888889
C. 0.29444444444444
D. 0.25347222222222
Answer» E.