Number System A certain number when divided by 45 leaves a remainder 31, what is the remainder if the same number be divided by 15? 9 13 11 1 9 13 11 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 45 + 31 = 76/15 = 1 (Remainder)
Number System The difference between the two digit number and the number obtained by interchanging its digits is 54. The difference between the digits is? 4 Nothing can be said. 1 6 4 Nothing can be said. 1 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) – (10y + x) = 54x – y = 6
Number System What is the sum of all even numbers from 1 to 701? 122500 122550 123850 122850 122500 122550 123850 122850 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 700/2 = 350350 * 351 = 122850
Number System A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 15 16 18 17 15 16 18 17 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
Number System If 70% of an equal to 40% of b, then ratio between a and b is? None 7: 11 4: 7 7: 4 None 7: 11 4: 7 7: 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 70 a = 40 ba: b = 4: 7
Number System What least number shall be added to 4700 to make it a perfect square ? 91 71 61 81 91 71 61 81 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (69)² = 4761 and (68)² = 4624Clerly 4624 < 4700 < 4761So 61 should be added to make 4700 a perfect square.
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