Number System Find the number of factors of 300 excluding 1 and itself. 16 14 15 18 16 14 15 18 ANSWER DOWNLOAD EXAMIANS APP
Number System What least number should be added to 8602 to make it a perfect square ? 36 51 47 41 36 51 47 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP So, (93)² = 8649So, the required number to be added to make a perfect square = 8649 - 8602 = 47
Number System On dividing a number by 68, we get 269 as quotient and 0 as remainder. On dividing the same number by 67, what will be the remainder? 0 1 2 3 0 1 2 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = 269 * 68 + 0 = 1829267) 18292 (273 18291 -------- 1Required number = 1.
Number System 6.4 x 8.5 x 25/3.2 x 12.5 = ? 3.4 2.3 5.6 4.5 3.4 2.3 5.6 4.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 6.4 x 8.5 x 2.5/3.2 x 12.5 = 3.4
Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 141 162 245 188 141 162 245 188 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.45% of x - 18% of x = 145.8∴ x/100 (45 - 18) = 145.8∴ x = 145.8 x 100/27 = 540∴ 30% of 540 = 540 x 30/100 = 162
Number System A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 15 18 16 17 15 18 16 17 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
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