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MCQOPTIONS
This section includes 2251 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
If x = 7, y = 4, z = 9, then which of the following is TRUE?I. x + y + z = 20II. x - y + z = 13III. x + y - z = 3IV. -x + y - z = -12A. I and IIB. III and IVC. I and IVD. I and III |
| A. | A |
| B. | D |
| C. | C |
| D. | B |
| Answer» D. B | |
| 102. |
How many zeroes are there at the end of product 35 × 27 × 52? |
| A. | 7 |
| B. | 6 |
| C. | 1 |
| D. | 4 |
| Answer» D. 4 | |
| 103. |
Find a two digit number which is exactly three times the product of its digits. |
| A. | 36 |
| B. | 12 |
| C. | 48 |
| D. | 24 |
| Answer» E. | |
| 104. |
If difference between six times and double of a number is 32, then what is the number? |
| A. | 8 |
| B. | 10 |
| C. | 18 |
| D. | 12 |
| Answer» B. 10 | |
| 105. |
If ◼ + 25 = ▲and ◼ - 25 = ●, then what is the relation between ▲and ● |
| A. | 25 + ● = ▲ |
| B. | 25 - ● = ▲ |
| C. | 50 + ● = ▲ |
| D. | 50 - ● = ▲ |
| Answer» D. 50 - ● = ▲ | |
| 106. |
A student has 37.5 meter of rope and he has to make 8 pieces out of a meter of rope. How many such pieces can he make out of his rope? |
| A. | 295 |
| B. | 300 |
| C. | 225 |
| D. | 305 |
| Answer» C. 225 | |
| 107. |
If the product of three consecutive positive integers is 15600 then the sum of the squares of these integers is |
| A. | 1777 |
| B. | 1785 |
| C. | 1875 |
| D. | 1877 |
| Answer» E. | |
| 108. |
If \(6\frac{3}{x}\times y\frac{2}{3}=30~and~2\frac{1}{2}-3\frac{2}{3}+1\frac{5}{6}-\frac{2}{z}=0\) where x, y and z are positive integers and the fractions are in the lowest terms, then the value of (x + y – z) is∶ |
| A. | 8 |
| B. | 0 |
| C. | 10 |
| D. | 11 |
| Answer» B. 0 | |
| 109. |
Mahesh has Rs. 50,000 which he converts to Dollars at 1 Dollar = 45 Rupees before going on a weekend trip to foreign. After returning he finds that he still has 200 Dollars remaining with him. How much amount in Rupees did he spend during his trip? |
| A. | 41,000 Rupees |
| B. | 40,000 Rupees |
| C. | 35,000 Rupees |
| D. | 45,500 Rupees |
| Answer» B. 40,000 Rupees | |
| 110. |
If the sum of two numbers be multiplied by each number separately, the products so obtained are 247 and 114. What is the sum of the numbers? |
| A. | 19 |
| B. | 20 |
| C. | 21 |
| D. | 23 |
| Answer» B. 20 | |
| 111. |
Find the greatest number of 4 digits which is completely divided by 12, 20, 32 and 44.A. 5200B. 4719C. 6800D. 5280 |
| A. | A |
| B. | D |
| C. | B |
| D. | C |
| Answer» C. B | |
| 112. |
If the population of a town is p in the beginning of any year then it becomes 3 + 2p in the beginning of the next year. If the population in the beginning of 2019 is 1000, then the population in the beginning of 2034 will be |
| A. | (1003)215 – 3 |
| B. | (9972)14 +3 |
| C. | (1003)15 + 6 |
| D. | (997)15 – 3 |
| Answer» B. (9972)14 +3 | |
| 113. |
If the HCF of two numbers is 6 and their LCM is 120, one such pair of numbers is: |
| A. | 24, 30 |
| B. | 18, 40 |
| C. | 12, 60 |
| D. | 12, 40 |
| Answer» B. 18, 40 | |
| 114. |
12, 13, 14, 15 and 16 are five consecutive natural numbers. Deleting one of the five natural numbers from the set decreases the sum of the remaining numbers in the set by 20%. Which of the following numbers is deleted? |
| A. | 12 |
| B. | 15 |
| C. | 14 |
| D. | 13 |
| Answer» D. 13 | |
| 115. |
Let x be the least number which when subtracted from 10424 gives a perfect square number. What is the least number by which x should be multiplied to get a perfect square? |
| A. | 6 |
| B. | 3 |
| C. | 5 |
| D. | 2 |
| Answer» D. 2 | |
| 116. |
If the 7-digit number 2y6810x is divisible by 88, then what is the value of the product of x and y? |
| A. | 20 |
| B. | 35 |
| C. | 10 |
| D. | 15 |
| Answer» B. 35 | |
| 117. |
2/9 the people in a restaurant are adults. If there are 65 more children than adults, then how many children are there in the restaurant? |
| A. | 91 |
| B. | 81 |
| C. | 117 |
| D. | 26 |
| Answer» B. 81 | |
| 118. |
Find the least perfect square that is divisible by 21, 36 and 66. |
| A. | 213444 |
| B. | 214344 |
| C. | 214434 |
| D. | 231444 |
| Answer» B. 214344 | |
| 119. |
Given that 0 < p < q < r < s and p, q, r, s are integers, which of the following is the smallest? |
| A. | \(\frac{{p + q}}{{r + s}}\) |
| B. | \(\frac{{p + s}}{{q + r}}\) |
| C. | \(\frac{{q + s}}{{p + r}}\) |
| D. | \(\frac{{r + s}}{{p + q}}\) |
| Answer» B. \(\frac{{p + s}}{{q + r}}\) | |
| 120. |
Find the smallest number that, when divided by each of the 2/3, 3/5, and 6/10 fractions, is the whole number in the form of a quotient. |
| A. | 6/30 |
| B. | 1/30 |
| C. | 6 |
| D. | 6/4 |
| Answer» D. 6/4 | |
| 121. |
If 5678A76 is divisible by 36, then A is ______ |
| A. | 0 |
| B. | 9 |
| C. | 6 |
| D. | 5 |
| Answer» D. 5 | |
| 122. |
Let x be the greatest number which when divides 6475, 4984 and 4132, the remainder in each case is the same. What is the sum of digits of x? |
| A. | 4 |
| B. | 7 |
| C. | 5 |
| D. | 6 |
| Answer» E. | |
| 123. |
Consider the following numbers∶(1) 2222(2) 11664(3) 343343(4) 220347Which of the above are not perfect squares? |
| A. | 1, 2 and 3 |
| B. | 1, 2 and 4 |
| C. | 2, 3 and 4 |
| D. | 1, 3 and 4 |
| Answer» E. | |
| 124. |
Number 136 is added to 5B7 and the sum obtained is 7A3, where A and B are integers. It is given that 7A3 is exactly divisible by 3. The only possible value of B is |
| A. | 2 |
| B. | 5 |
| C. | 7 |
| D. | 8 |
| Answer» E. | |
| 125. |
One third of Gowri’s marks in History equals her marks in Geography. If she obtained 160 marks in the two subjects together, how many marks did she get in Geography ? |
| A. | 60 |
| B. | 30 |
| C. | 40 |
| D. | 90 |
| Answer» D. 90 | |
| 126. |
Find the smallest number that can be complete divided by 8, 10, 12, and 26. |
| A. | 1422 |
| B. | 1320 |
| C. | 1560 |
| D. | 1646 |
| Answer» D. 1646 | |
| 127. |
Q : How much money is there in the bag which solely contains 50 ps, 1 rupee coins?S1 : Total number of coins is 521.S2 : Twice the number of 50 ps coins exceeds that of 1 rupee coins by 127. |
| A. | if S1 alone is sufficient to answer Q |
| B. | if S2 alone is sufficient to answer Q. |
| C. | if S1 and S2 together only can answer Q but neither S1 and S2 alone can answer Q. |
| D. | if S1 and S2 together also cannot answer Q and additional information is needed to answer. |
| Answer» D. if S1 and S2 together also cannot answer Q and additional information is needed to answer. | |
| 128. |
If a 10-digit number 6220x558y2 is divisible by 88, then the value of (5x + 5y) is: |
| A. | 45 |
| B. | 55 |
| C. | 20 |
| D. | 25 |
| Answer» D. 25 | |
| 129. |
If x = (√5) + 1 and y = (√5) – 1, then what is the value of (x2/y2) + (y2/x2) + 4[(x/y) + (y/x)] + 6? |
| A. | 31 |
| B. | 23√5 |
| C. | 27√5 |
| D. | 25 |
| Answer» E. | |
| 130. |
a, b, c, d are four positive real numbers such that abcd = 1, then (1 + a)(1 + b)(1 + c)(1 + d) is: |
| A. | Less than or equal to 8 |
| B. | Greater than or equal to 16 |
| C. | Greater than or equal to 8 |
| D. | Less than or equal to 15 |
| Answer» C. Greater than or equal to 8 | |
| 131. |
Find the number whose cube is – 2744000 |
| A. | 140 |
| B. | -140 |
| C. | -210 |
| D. | 210 |
| Answer» C. -210 | |
| 132. |
Find the sum of first 30 natural numbers |
| A. | 470 |
| B. | 468 |
| C. | 465 |
| D. | 463 |
| Answer» D. 463 | |
| 133. |
In a group of 15 people, 7 read French, 8 read English while 3 of them read none of these two. How many of them read French & English both? |
| A. | 0 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 134. |
A six-digit number 4ABB8A is a multiple of 33 for non-zero digits A and B. Which of the following could be the possible values of A and B? |
| A. | A = 3, B = 2 |
| B. | A = 6, B = 3 |
| C. | A = 6, B = 2 |
| D. | A = 3, B = 6 |
| Answer» C. A = 6, B = 2 | |
| 135. |
Consider the following sentences∶1. Of the two consecutive integers, one is even.2. Square of an odd integer is of the form 8n + 1Which of the above statements is/are correct? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» D. Neither 1 nor 2 | |
| 136. |
Find the LCM of 36/225, 48/150 and 72/85 |
| A. | 140/15 |
| B. | 144/5 |
| C. | 72/85 |
| D. | 150/225 |
| Answer» C. 72/85 | |
| 137. |
On dividing a number by 38, the quotient is 24 and the remainder is 13, the number is∶ |
| A. | 956 |
| B. | 904 |
| C. | 925 |
| D. | 975 |
| Answer» D. 975 | |
| 138. |
How many factors of 512 are perfect squares? |
| A. | 3 |
| B. | 5 |
| C. | 6 |
| D. | 4 |
| Answer» C. 6 | |
| 139. |
In which of the following cases only one line of symmetry exists? |
| A. | Rectangle |
| B. | Equilateral triangle |
| C. | Circle |
| D. | Semi circle |
| Answer» E. | |
| 140. |
Find the greatest number that can divide 108 and 144 in order to leave a remainder of 3 and 4 respectively. |
| A. | 15 |
| B. | 21 |
| C. | 14 |
| D. | 35 |
| Answer» E. | |
| 141. |
How many lines of symmetry are there in an isosceles trapezium? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» C. 2 | |
| 142. |
Find the least number which when divided by 8, 9, 12 and 15, leaves the remainder 1. |
| A. | 359 |
| B. | 181 |
| C. | 179 |
| D. | 361 |
| Answer» E. | |
| 143. |
2 dozen books and 16 notebooks are to be distributed among the students in such a way that no one remains after distribution. How many maximum number of sets of books and notebooks can be made?A. 4B. 6C. 8D. 10 |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 144. |
Find the HCF of 143, 77 and 121. |
| A. | 6 |
| B. | 11 |
| C. | 4 |
| D. | 7 |
| Answer» C. 4 | |
| 145. |
Find the HCF of 15x2 + 8x – 12, 3x2 + x – 2, 3x2 – 2x, 9x2 – 12x + 4. |
| A. | 3x – 4 |
| B. | x – 2 |
| C. | 3x – 2 |
| D. | x – 4 |
| Answer» D. x – 4 | |
| 146. |
How many of the following numbers are divisible by 31?186, 226, 832, 656, 1264, 527 |
| A. | 5 |
| B. | 4 |
| C. | 3 |
| D. | 2 |
| Answer» E. | |
| 147. |
If the seven digit number 64x29y6 (x > y) is divisible by 72, what is the value of (2x – 3y)? |
| A. | 9 |
| B. | 3 |
| C. | 7 |
| D. | 13 |
| Answer» C. 7 | |
| 148. |
If (x + 4) is a factor of x3 + 2x2 + bx + 68, what is the value of b? |
| A. | -9 |
| B. | 9 |
| C. | 8 |
| D. | -8 |
| Answer» C. 8 | |
| 149. |
How many numbers between 100 and 2000 have all three numbers 15, 20, and 25 as divisors? |
| A. | 6 |
| B. | 5 |
| C. | 4 |
| D. | 3 |
| Answer» B. 5 | |
| 150. |
If 348P is divisible by 8 then what is the value of P? |
| A. | 0 |
| B. | 2 |
| C. | 8 |
| D. | 0 or 8 |
| Answer» E. | |