Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 164 162 168 170 164 162 168 170 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 On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: 47719 47619 47649 48619 47719 47619 47649 48619 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP By hit and trail, we find that47619 * 7 = 333333.7) 333333 (47619 333333---------------- 0
Number System What will be the next number in the following number series ? 162 182 177 191 162 182 177 191 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1² + 1, 3² + 3, 5² + 5, 7² + 7
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 None of these 8 27 32 None of these 8 27 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 In how many different ways can the letters of the word ANATOMY be arranged ? 2510 2508 2520 2504 2510 2508 2520 2504 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
Number System 96% of a number is 19584. What is 56% of that number ? 11424 11524 11224 11324 11424 11524 11224 11324 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question.96% of x = 19584= x = 1958 x 100/96 = 20400∴ 56% of 20400= 20400 x 56/100= 11424
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