Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 170 168 164 162 170 168 164 162 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
Number System The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root? 32 8 27 None of these 32 8 27 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,x + 1/x = 34/8 8x2 - 34x + 8 = 0 4x2 - 17x + 4 = 0 (4x - 1)(x - 4) = 0 x = 4required number = 4 * √4 = 4 * 2 = 8.
Number System 4500 * ? = 3375 1/4 3/5 2/5 3/4 1/4 3/5 2/5 3/4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4500 * x = 3375= x = 3375/4500 = 3/4
Number System Find out the smallest possible number which will be divisible by 1122 as well as 153. 3366 2366 4366 1366 3366 2366 4366 1366 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3366
Number System 56.21 +2.36+5.41 —21.4+1.5=? 34.08 44.08 64.08 54.08 34.08 44.08 64.08 54.08 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 44.08
Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 162 188 141 245 162 188 141 245 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
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