Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 81 84 83 82 81 84 83 82 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 16 18 17 15 16 18 17 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
Number System 7589 - ? = 3434 1123 4242 4155 11023 1123 4242 4155 11023 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 7589 - x = 3434Then x = 7589 - 3434 = 4155
Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 164 168 162 170 164 168 162 170 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
Number System Which one of the following represents the sum of the first n even numbers? N2+ 1 N(N + 1) N(N – 1) N2 N2+ 1 N(N + 1) N(N – 1) N2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP N (N + 1)
Number System Find the nearest to 25268 which is exactly divisible by 467? 25208 25308 25228 25218 25208 25308 25228 25218 ANSWER DOWNLOAD EXAMIANS APP
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