Explore topic-wise MCQs in Arithmetic Ability.

This section includes 924 Mcqs, each offering curated multiple-choice questions to sharpen your Arithmetic Ability knowledge and support exam preparation. Choose a topic below to get started.

901.

A 3 by 4 rectangle is inscribed in circle. What is the circumference of the circle?

A. 2.5Ï€
B. 3Ï€
C. 5Ï€
D. 4Ï€
Answer» D. 4Ï€
Discussion
902.

15 small rods, each of length 23 2/7 m are joined to make a big rod. What then is the length of the big rod?_x005F_x000D_

A. 349 5/7 m
B. 349 1/7 m
C. 349 2/7 m
D. 349 3/7 m
Answer» D. 349 3/7 m
Discussion
903.

The percentage increase in the area of a rectangle, if each of its sides is increased by 20%

A. 0.22
B. 0.33
C. 0.44
D. 0.55
Answer» D. 0.55
Discussion
904.

2 metres broad pathway is to be constructed around a rectangular plot on the inside. The area of the plots is 96 sq.m. The rate of construction is Rs. 50 per square metre. Find the total cost of the construction?

A. 20
B. 30
C. 40
D. data is inadequate
Answer» E.
Discussion
905.

If the circumference of a circle is 88 cm, then what must be its area (in cm2)?_x005F_x000D_

A. 1232_x005F_x000D_
B. 616_x005F_x000D_
C. 704_x005F_x000D_
D. 1408
Answer» C. 704_x005F_x000D_
Discussion
906.

_x005F_x000D_  _x005F_x000D_ If LMN and UVW are similar triangles, the value of side s is

A. 4
B. 6
C. 8
D. 9
Answer» D. 9
Discussion
907.

ΔXYZ is right angled at Y. If sinX = 12/13, then what is the value of cosecZ ?_x005F_x000D_

A. 5/12_x005F_x000D_
B. 5/13_x005F_x000D_
C. 13/5_x005F_x000D_
D. 44543
Answer» D. 44543
Discussion
908.

ΔXYZ is right angled at Y. If m∠Z = 30°, then find the value of (cosX - 1/√3)._x005F_x000D_

A. 44230
B. 1-√2
C. (4-√3)/2√3
D. (√3-2)/2√3
Answer» E.
Discussion
909.

ΔXYZ is similar to ΔPQR. If ratio of perimeters of ΔXYZ : ΔPQR is 3:2 and if PQ = 6 cm then what is the length of XY (in cm)?

A. 4
B. 8
C. 12
D. 9
Answer» E.
Discussion
910.

ΔUVW is right angled at V. If sinU = 24/25, then what is the value of cosW ?_x005F_x000D_

A. 25/7_x005F_x000D_
B. 24/7_x005F_x000D_
C. 45474
D. 24/25
Answer» E.
Discussion
911.

ΔPQR is right angled at Q. QS is the altitude. PQ is 4√29 cm and PS is 8 cm. Find length of SR?

A. 10√29 cm
B. 8√29 cm
C. 50 cm
D. 20 cm
Answer» D. 20 cm
Discussion
912.

ΔPQR is right angled at Q. QS is the altitude. PQ is 2√13 cm and PS is 8 cm. What is the length of SR?

A. 6√13 cm
B. 4√13 cm
C. 18 cm
D. 9 cm
Answer» D. 9 cm
Discussion
913.

ΔPQR is right angled at Q. If m∠R=300, then find the value of (cosP - 1/3)._x005F_x000D_

A. 44348
B. (2√2-1)/√2
C.
D. (√3-4)/2√3
Answer» B. (2√2-1)/√2
Discussion
914.

ΔGHI is similar to ΔKLM. If the ratio of Perimeter of Δ GHI : Perimeter of ΔKLM = 1:4, and length of GH is 2 cm, what is the length of the corresponding side KL?

A. 4 cm
B. 8 cm
C. 32 cm
D. 16 cm
Answer» C. 32 cm
Discussion
915.

ΔDEF is right angled at E. If m∠D = 600, then find the value of (cotF + 1/√3)._x005F_x000D_

A. 3√3/2
B. 4/√3
C. (2+2√3)/√3
D. 7/2√3
Answer» C. (2+2√3)/√3
Discussion
916.

ΔABC is similar to ΔPQR. Length of AB is 36 cm and length of the corresponding side PQ is 16 cm. If area of ΔABC is 1296 sq cm, what is the area of ΔPQR?

A. 128 sq cm
B. 512 sq cm
C. 64 sq cm
D. 256 sq cm
Answer» E.
Discussion
917.

ΔABC is right angled at B. BD is the altitude. AD is 18 cm and DC is 50 cm. Find length of BD?

A. 30 cm
B. 25 cm
C. 35 cm
D. 15 cm
Answer» B. 25 cm
Discussion
918.

ΔABC is similar to ΔPQR. If ratio of perimeter of ΔABC : perimeter of ΔPQR is 5:9 and if PQ = 45 cm, then the length of AB (in cm) is?

A. 15
B. 20
C. 25
D. 16
Answer» D. 16
Discussion
919.

ΔABC is right angled at B. BD is an altitude. AD = 9 cm and DC = 16 cm. What is the value of BD (in cm)?

A. 6
B. 18
C. 21
D. 12
Answer» E.
Discussion
920.

ΔABC is an isosceles right angled triangle having ∠C = 90°. If D is any point on AB, then AD2+ BD2 is equal to

A. CD2
B. 2CD2
C. 3CD2
D. 4CD2
Answer» C. 3CD2
Discussion
921.

Δ LMN is right angled at M. If m∠N = 45°, what is the length of MN (in cm), if NL = 9√2 cm?

A. 9√2
B. 9/√2
C. 18
D. 9
Answer» E.
Discussion
922.

Δ DEF is right angled at E. If m∠D = 30°, what is the length of DE (in cm), if EF = 6√3 cm?

A. 18
B. 12√3
C. 18√3
D. 12
Answer» B. 12√3
Discussion
923.

Δ DEF is right angled at E. If m ∠D = 30°. What is the length (in cm) of DE, if EF = 2√3 cm?

A. 3
B. 4
C. 6
D. 2
Answer» D. 2
Discussion
924.

∆ABC is right angled at B. If cosA = 8/17, then what is the value of cotC ?_x005F_x000D_

A. 44423
B. 15/17
C. 42948
D. 17/15
Answer» B. 15/17
Discussion