Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 7 3 11 5 7 3 11 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and 15 as remainder. What is the smaller number? 360 270 295 240 360 270 295 240 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the smallest number be x.Then larger number = (x + 1365)x + 1365 = 6x + 15= 5x = 1350 x = 270Smaller number = 270.
Number System Twenty times a positive integer is less than its square by 96. What is the integer? Cannot be determined 24 20 30 Cannot be determined 24 20 30 ANSWER DOWNLOAD EXAMIANS APP
Number System Simplify the 121 * 175 + 363 * 275 316600 None of these 328100 363000 316600 None of these 328100 363000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000
Number System The sum of two numbers is 165 and the difference between them is 9. What is the average of these two numbers ? 84.5 82.5 85.5 83.5 84.5 82.5 85.5 83.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 165x - y = 92x = 174 ∴ x = 87 and y = 78∴ x + y/2 = 165/2 = 82.5
Number System What is the sum of all the numbers between 300 and 1000 which are divisible by 179? 2527 2506 2517 2607 2527 2506 2517 2607 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 358/179 ….. 895/179179(2 + 3 + 4 + 5) => 2506
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