MCQOPTIONS
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MCQOPTIONS
This section includes 175 Mcqs, each offering curated multiple-choice questions to sharpen your Discrete Mathematics knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
(12345679 x 72) = ? |
| A. | 88888888 |
| B. | 888888888 |
| C. | 898989898 |
| D. | 9999999998 |
| Answer» C. 898989898 | |
| 152. |
The cube root of .000216 is: |
| A. | .6 |
| B. | .06 |
| C. | 77 |
| D. | 87 |
| Answer» C. 77 | |
| 153. |
(800 ÷ 64) x (1296 ÷36) = ? |
| A. | 420 |
| B. | 460 |
| C. | 500 |
| D. | None of these |
| Answer» E. | |
| 154. |
How many terms are there in the G.P. 3, 6, 12, 24, ... , 384 ? |
| A. | 8 |
| B. | 9 |
| C. | 10 |
| D. | 11 |
| Answer» B. 9 | |
| 155. |
Find the odd man out:2, 5, 10, 17, 26, 37, 50, 64 |
| A. | 50 |
| B. | 26 |
| C. | 37 |
| D. | 64 |
| Answer» E. | |
| 156. |
The difference of the squares of two consecutive odd integers is divisible by which of the following integers ? |
| A. | 3 |
| B. | 6 |
| C. | 7 |
| D. | 8 |
| Answer» E. | |
| 157. |
On dividing a number by 68, we get 269 as quotient and 0 as remainder. On dividing the same number by 67, what will the remainder ? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» C. 2 | |
| 158. |
106 x 106 - 94 x 94 = ? |
| A. | 2400 |
| B. | 2000 |
| C. | 1904 |
| D. | 1906 |
| Answer» B. 2000 | |
| 159. |
If a and b are odd numbers, then which of the following is even ? |
| A. | a + b |
| B. | a + b + 1 |
| C. | ab |
| D. | ab + 2 |
| Answer» B. a + b + 1 | |
| 160. |
If x and y are positive integers such that (3x + 7y) is a multiple of 11, then which of the following will be divisible by 11 ? |
| A. | 4x + 6y |
| B. | x + y + 4 |
| C. | 9x + 4y |
| D. | 4x - 9y |
| Answer» E. | |
| 161. |
What least number must be added to 1056, so that the sum is completely divisible by 23 ? |
| A. | 2 |
| B. | 3 |
| C. | 18 |
| D. | 21 |
| Answer» B. 3 | |
| 162. |
It is being given that (2^32 + 1) is completely divisible by a whole number. Which of the following numbers is completely divisible by this number? |
| A. | (2^16 + 1) |
| B. | (2^16 - 1) |
| C. | (7 x 2^23) |
| D. | (2^96 + 1) |
| Answer» E. | |
| 163. |
1397 x 1397 = ? |
| A. | 1951609 |
| B. | 1981709 |
| C. | 18362619 |
| D. | 2031719 |
| Answer» B. 1981709 | |
| 164. |
Which one of the following is not a prime number? |
| A. | 31 |
| B. | 61 |
| C. | 71 |
| D. | 91 |
| Answer» E. | |
| 165. |
(112 x 5^4) = ? |
| A. | 67000 |
| B. | 70000 |
| C. | 76500 |
| D. | 77200 |
| Answer» C. 76500 | |
| 166. |
THE_LINEAR_COMBINATION_OF_GCD(10_,11)_=_1_CAN_BE_WRITTEN_AS?$ |
| A. | (-1)*10 + 1*11 |
| B. | (-2)*10 + 2*11 |
| C. | 1*10 + (-1)*11 |
| D. | (-1)*10 + 2*11 |
| Answer» B. (-2)*10 + 2*11 | |
| 167. |
The_value_of_52003_mod_7_is$ |
| A. | 3 |
| B. | 4 |
| C. | 8 |
| D. | 9 |
| Answer» B. 4 | |
| 168. |
The solution of the linear congruence 4x = 5(mod 9) i? |
| A. | 6(mod 9) |
| B. | 8(mod 9) |
| C. | 9(mod 9) |
| D. | 10(mod 9) |
| Answer» C. 9(mod 9) | |
| 169. |
The integer 2821 is a Carmichael number. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 170. |
The inverse of 19 modulo 141 is |
| A. | 50 |
| B. | 51 |
| C. | 54 |
| D. | 52 |
| Answer» E. | |
| 171. |
The inverse of 7 modulo 26 is |
| A. | 12 |
| B. | 14 |
| C. | 15 |
| D. | 20 |
| Answer» D. 20 | |
| 172. |
The linear combination of gcd(117, 213) = 3 can be written as |
| A. | 11*213 + (-20)*117 |
| B. | 10*213 + (-20)*117 |
| C. | 11*117 + (-20)*213 |
| D. | 20*213 + (-25)*117 |
| Answer» B. 10*213 + (-20)*117 | |
| 173. |
The integer 561 is a Carmichael number. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 174. |
The inverse of 3 modulo 7 is |
| A. | -1 |
| B. | -2 |
| C. | -3 |
| D. | -4 |
| Answer» C. -3 | |
| 175. |
The linear combination of gcd(252, 198) = 18 is |
| A. | 252*4 – 198*5 |
| B. | 252*5 – 198*4 |
| C. | 252*5 – 198*2 |
| D. | 252*4 – 198*4 |
| Answer» B. 252*5 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 198*4 | |