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: 88 44 80 40 88 44 80 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 (95.6x 910.3) ÷ 92.56256 = 9? 15.54 12.24 13.34 14.44 15.54 12.24 13.34 14.44 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 13.34
Number System (4.6 x 2.8 x 5.5) - (3.2 x 4.5 x 2.8) = ? 28.56 29.81 27.54 30.52 28.56 29.81 27.54 30.52 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (4.6 x 2.8 x 5.5) - (3.2 x 4.5 x 2.8) = 70.84 - 40.32 = 30.52
Number System 17580 x 1.8 - 13720 x 2.1 = ? x 2.4 1140 1120 1160 1180 1140 1120 1160 1180 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2.4 x ? = 31644 - 28812 = 2832∴ ? = 2832/2.4= 1180
Number System 7589 - ? = 3434 4155 11023 1123 4242 4155 11023 1123 4242 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 7589 - x = 3434Then x = 7589 - 3434 = 4155
Number System If 70% of an equal to 40% of b, then ratio between a and b is? 7: 4 None 7: 11 4: 7 7: 4 None 7: 11 4: 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 70 a = 40 ba: b = 4: 7
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