Number System 732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ? 651.68 621.68 631.68 641.68 651.68 621.68 631.68 641.68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1361.20 - 709.52 = 651.68
Number System 450% of a number is 4725. What is 82% of that number ? 851 861 841 871 851 861 841 871 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 450/100 = 4725= x = 4725 x 100/450 = 1050∴ 82% of 1050 = 1050 x 82/100= 861
Number System The product of two consecutive odd numbers is 4095 What is the greater number ? 65 61 74 69 65 61 74 69 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 Three seventh of a number is 12 more than 40% of that number. What will be the 60% of that number? 126 148 248 210 126 148 248 210 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/7 x – 40/100 x = 12x = 35 * 1235 * 12 * 60/100 = 252/2 = 126
Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 12/5 5/12 25/144 144/25 12/5 5/12 25/144 144/25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,2/3 x = 25/216 * 1/xx2 = 25/216 * 3/2 = 25/144 x = 5/12
Number System The sum of two numbers is 25 and their difference is 13. Find their product. 114 104 325 315 114 104 325 315 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then x + y = 25 and x - y = 13.x = 19; y = 6xy = 19 * 6 = 114
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