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 44 88 40 80 44 88 40 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 17580 x 1.8 - 13720 x 2.1 = ? x 2.4 1120 1140 1180 1160 1120 1140 1180 1160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2.4 x ? = 31644 - 28812 = 2832∴ ? = 2832/2.4= 1180
Number System Which is the largest fraction among the following ? 21/23 12/13 21/22 24/25 21/23 12/13 21/22 24/25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21/23 = 0.913,12/13 = 0.92323/25 = 0.92, 21/22 = 0.9545, 24/25 = 0.96
Number System What is 846 times 323 ? 264258 273258 293798 283298 264258 273258 293798 283298 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 846 x 323 = 273258
Number System If one third of 3/4 of a number is 21. Then find the number? 840 84 63 630 840 84 63 630 ANSWER DOWNLOAD EXAMIANS APP
Number System A number consists of two digits. If 3/5 of 1/5 of the number is 9. Find the sum of its two digits? 7 12 60 8 7 12 60 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/5 * 1/5 = 9x = 75 => 7 + 5 = 12
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