Number System Two third of three- fifth of one fourth of a number is 24, what is 30% of that number? 42 90 69 72 42 90 69 72 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 2/3 * 3/5 * 1/4 = 24x = 240240 * 30/100 = 72
Number System Complete the series : 81, 69, 58, 48, 39 ........ 31 30 28 29 31 30 28 29 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 31
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 24 26 25 23 24 26 25 23 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be (x + 1) and x.Therefore, (x + 1)² - x² = 47x² + 2x + 1 - x² = 472x + 1 = 47Therefore, x = 46/2 = 23
Number System Which choice provides the answer : If 2 + 3 = 10, 6 + 5 = 66, 7 + 2 = 63, 9 + 7 = 144 then, 8 + 4 = ? 102 96 114 88 102 96 114 88 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 96
Number System 50% of 8/15 of 9/4 of 5/3 of 333 = ? 555 444 666 333 555 444 666 333 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 50% of [8x9x5/15x4x3 x 333]= 50% of 666= 333
Number System If the numberator of a fraction is increased by 50% and denominator by 20% the fraction become 9/15. What was the original fraction ? 6/7 3/5 12/25 13/25 6/7 3/5 12/25 13/25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the fraction be x/yWe have 150x/120y = 9/15= x/y = 12/25
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