Number System If the sum of the two numbers is 22 and the sum of their squares is 404, then the product of the numbers is: 80 40 44 88 80 40 44 88 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then, (x + y) = 22 and x2 + y2 = 404 Now, 2xy = (x + y)2 - (x2 + y2) 2xy= 222 - 404 = 484 - 404 = 80xy = 40
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 170 169 168 171 170 169 168 171 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System √207.36 = ? 12.3 15.7 14.4 16.7 12.3 15.7 14.4 16.7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √207.36 = √20736/√100 = 144/10 = 14.4
Number System ?125÷5x ?=6265 124 153 1452 1253 124 153 1452 1253 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1253
Number System If the following fractions 7/6, 6/7, 5/3, 8/13 and 6/5 are arranged in descending order, which will be the last in the series? 7/13 8/13 6/13 9/13 7/13 8/13 6/13 9/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/6 = 1.166, 6/7 = 0.857,5/3 = 1.66,8/13 = 0.615,6/5 = 1.2Therefore, 5/3 > 6/5 > 7/6 > 6/7 > 8/13
Number System {3√4913}² = ? 225 333 121 289 225 333 121 289 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (3√4913)² = (17)² = 289
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