Number System The sum of two numbers is 25 and their difference is 13. Find their product. 315 114 325 104 315 114 325 104 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
Number System What is the difference between the local values of 3 in the number 53403? 3030 0 2997 3003 3030 0 2997 3003 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3000 – 3 = 2997
Number System If the fraction 8/6, 7/5, 18/13, 9/5 and 7/11 are arranged in descending order of their values, which one will be the second ? 3/4 7/5 1/9 2/7 3/4 7/5 1/9 2/7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8/6 = 1. 333, 7/5 = 1.4, 18/13 = 1.3849/5 = 1.8 and 7/11 = 0.636Therefore, Descending order is 9/5 > 7/5 > 18/13 > 8/6 > 7/11Therefore Second fraction is 7/5
Number System 36% of 850+? % of 592 = 750 75 25 12.5 50 75 25 12.5 50 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 75
Number System (12.11)2 + (?)2 = 732.2921 14.2 17.2 20.2 24.2 14.2 17.2 20.2 24.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 24.2
Number System If the sum of four consecutive numbers is 370, which the following is the third lowest number among them 90 92 91 89 90 92 91 89 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four consecutive numbers be x, (x + 1), (x + 2), (x + 3) thenx + (x + 1) + (x + 2) + (x + 3) = 370= 4x + 6 = 370∴ x = 364/4 = 91∴ third lowest number among them = x + 1= 91 + 1 = 92
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