Number System In a pair of fractions, fraction A is twice the fraction B and the product of two fractions is 2/25. What is the value of fraction A? 1/5 Data inadequate 2/5 1/25 1/5 Data inadequate 2/5 1/25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A = 2B => B = 1/2 A, so, AB = 2/25 1/2 A2 = 2/25A2 = 4/25 A = 2/5
Number System If one-third of one fourth of a number is 15, then three-tenth of that number is: 25 35 54 45 25 35 54 45 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,1/3 of 1/4 of x = 15x = 15 * 12 = 180So, required number = (3/10 * 180) = 54.
Number System What least number should be added to 8602 to make it a perfect square ? 36 47 41 51 36 47 41 51 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 666 / 6 / 3 = ? 111 84 333 37 111 84 333 37 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 666 * 1/6 * 1/3 = 37
Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 162 141 188 245 162 141 188 245 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 What should come in place of the question mark (?) in the following number series ? 888 888 444 148 ? 7.4 29 33 37 35 29 33 37 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 888 ÷ 1 = 888888 ÷ 2 = 444444 ÷ 3 = 148148 ÷ 4 = 3737 ÷ 5 = 7.4
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