Number System When 102 is reduced from a number, the number gets reduced by 88%. What is that number ? 750 550 650 850 750 550 650 850 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 850
Number System The population of a town increases by 15% in the first year and decreases by 25% in the second year. If its current population is 168480 then what will be its population after two years ? 145914 145214 145314 145714 145914 145214 145314 145714 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Population of the town= 168480 x 115/100 x 75/100= 145314
Number System Two numbers have a H.C.F of 16 and a product of two numbers is 2560. Find the L.C.M of the two numbers? 140 160 170 150 140 160 170 150 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP L.C.M of two numbers is given by(Product of the two numbers) / (H.C.F of the two numbers) = 2560/16 = 160.
Number System The product of two consecutive position odd numbers is 6723. What is the smaller number? 71 83 74 79 71 83 74 79 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP n x (n + 2) = 6723= n² + 2n - 6723 = 0= n² + 83n - 81n - 6723 = 0= n(n + 83) - 81 (n + 83) = 0Therefore, (n - 81) (n + 83) = 0Therefore, n = 81, n + 2 = 83
Number System Which choice provides the answer in the following : If 2 * 3 = 36, 5 * 4 = 400, 6 * 2 = 144, 3 * 3 = 81; then, 5 * 5 = ? 425 325 625 525 425 325 625 525 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 625
Number System Find the number, when 15 is subtracted from 7 times the number, the result is 10 more than twice of the number 7.5 15 5 4 7.5 15 5 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.7x -15 = 2x + 10 => 5x = 25 => x = 5
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