Number System 732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ? 631.68 651.68 621.68 641.68 631.68 651.68 621.68 641.68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1361.20 - 709.52 = 651.68
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? 33 14 21 17 33 14 21 17 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 12
Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 45 42.6 42.1 54.7 45 42.6 42.1 54.7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System The product of two consecutive odd numbers is 4095 What is the greater number ? 61 74 69 65 61 74 69 65 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the two consecutive odd numbers be 2x - 1 and 2x + 1.(2x - 1) (2x - 1) = 4095= 4x² - 1 = 4095= 4x² = 4096= x² = 1024∴ x = 32∴ The numbers are 63 and 65.Greater number = 65
Number System 56.21 +2.36+5.41 —21.4+1.5=? 44.08 64.08 34.08 54.08 44.08 64.08 34.08 54.08 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 44.08
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 27 8 None of these 32 27 8 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.
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