Number System What is the least number that should be added to 5200 to make it a perfect square ? 288 275 225 129 288 275 225 129 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP We sec (73)² = 5329 and (72)² = 5184ie 5329 > 5200 > 5184So 129 should be added to make is perfect square.
Number System Two numbers are in the ratio 3:5. If 9 be subtracted from each, they are in the ratio of 9:17. The first number is: 36 18 27 30 36 18 27 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (3x-9):(5x-9) = 9:17 x = 12 => 3x = 36
Number System Find the greatest four digit number which leaves respective remainders of 2 and 5 when divided by 15 and 24. None of these 9565 9974 9125 None of these 9565 9974 9125 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Since the difference between the divisors and the respective remainders is not constant, back substitution is the convenient method. None of the given numbers is satisfying the condition.
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 170 171 168 169 170 171 168 169 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 46 45 47 44 46 45 47 44 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.684 8.584 8.784 8.484 8.684 8.584 8.784 8.484 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
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