Number System Find the smallest number which should be multiplied with 520 to make it a perfect square. 30 55 None of these 120 30 55 None of these 120 ANSWER DOWNLOAD EXAMIANS APP
Number System The sum of the digits of a two digit number is 12. If the new number formed by reversing the digits is greater than the original number by 54, then what will be the original number? 69 49 59 39 69 49 59 39 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 39
Number System 9 3/4 + 7 2/17 - 9 1/15 = ? 7 817/1020 9 817/1020 7 719/1020 9 719/1020 7 817/1020 9 817/1020 7 719/1020 9 719/1020 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given sum = 9 + 3/4 + 7 + 2/17 - (9 + 1/15)= (9 + 7 - 9) + (3/4 + 2/17 - 1/15)= 7 + (765 + 120 - 68)/1020 = 7 817/1020
Number System What is the least number that should be added to 5200 to make it a perfect square ? 288 129 225 275 288 129 225 275 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 One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number? 5 3 9 7 5 3 9 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x/2 – x/3 = 6=> x =63 + 6 = 9
Number System What number should come in the place of (?) in the following number series ? 1, 4, 9, 25, 49, ?, 169, 289, 361 11 121 225 321 11 121 225 321 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The series is (Prime No.)²So it is (11)² = 121
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