Number System 2536+4851—?=3450+313 5243 3624 6784 4567 5243 3624 6784 4567 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3624
Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 162 141 245 188 162 141 245 188 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 When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 45 44 47 46 45 44 47 46 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
Number System The average of five consecutive even numbers A, B, C, D and E is 42. What is the product of B and D ? 3289 1760 4589 2476 3289 1760 4589 2476 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A + B + C + D + E/5 = 42∴ C = 42, ∴ B = 40, ∴ D = 44∴ B x D = 40 x 44 = 1760
Number System A shopkeeper purchased 200 bulbs for Rs. 10 each. However, 5 bulbs were fused and had to be thrown away. The remaining were sold at Rs. 12 each. What will be percentage profit? 17 33 21 14 17 33 21 14 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 12
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.684 8.584 8.784 8.484 8.684 8.584 8.784 8.484 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
EXAMIANS