Number System If one-third of one fourth of a number is 15, then three-tenth of that number is: 45 54 35 25 45 54 35 25 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 should come in place of (?) in the following series ? 10, 19, 30, 43, 58, ? 76 78 77 75 76 78 77 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The series is: +9, +11, +13, +15, +17
Number System A number exceeds by 25 from its 3/8 part. Then the number is? 40 39 35 32 40 39 35 32 ANSWER DOWNLOAD EXAMIANS APP
Number System 7.8% of 12.5 + 2.5% of 161 = ? 12 9 2 5 12 9 2 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 12.5/100 + 2.5 x 161/100= 0.975 + 4.025= 5
Number System The difference between a number and its three-fifth is 50. What is the number? None of these 75 100 125 None of these 75 100 125 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x - 3/5 x = 50 => 2/5 x = 50x = (50 * 5)/2 = 125.
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? 27 None of these 32 8 27 None of these 32 8 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.
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