Number System Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 160 140 240 180 160 140 240 180 ANSWER DOWNLOAD EXAMIANS APP
Number System 3√103820 x 3√274620 = ? 3035 3045 3065 3055 3035 3045 3065 3055 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3√103820 = 47 and 3√274620 = 65 ∴ ? = 47 x 65 = 3055
Number System What should come in place of the question mark (?) in the following number series ? 888 888 444 148 ? 7.4 35 33 29 37 35 33 29 37 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 888 ÷ 1 = 888888 ÷ 2 = 444444 ÷ 3 = 148148 ÷ 4 = 3737 ÷ 5 = 7.4
Number System Twenty times a positive integer is less than its square by 96. What is the integer? 30 24 20 Cannot be determined 30 24 20 Cannot be determined ANSWER DOWNLOAD EXAMIANS APP
Number System If the sum of five consecutive even numbers A, B, C, D and E is 130, what is the product of A and E ? 660 840 780 720 660 840 780 720 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the consecutive even numbers be A = 2x, B = 2x + 2, C = 2x + 4, D = 2x + 6 and E = 2x + 8= A + B + C + D + E = 130= 10x + 20 = 130∴ x = 130 - 20/10 = 11Therefore, product of A and E= 22 x 30 = 660
Number System When 732 is subtracted form the square of a number, the answer that is obtained is 5280. What is the number? 99 103 101 97 99 103 101 97 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 - 732 = 5280 x2 = 5280 + (70+3)2 = 5280 + 4900 + 420 + 9 = 10609= 10000 + 2(100)(3) + 32 = (100 + 3)2x = 100 + 3 = 103.
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