Number System Find the least number with which 16200 should be multiplied, to make it a perfect cube. 48 36 360 45 48 36 360 45 ANSWER DOWNLOAD EXAMIANS APP
Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 3 7 11 5 3 7 11 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System A certain number of two digits is three times the sum of its digits. If 45 be added to it, the digits are reversed. The number is: 27 24 22 30 27 24 22 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 27
Number System The product of two consecutive odd numbers is 4623. What is the product of the next two consecutive odd numbers ? 7745 5183 6782 8795 7745 5183 6782 8795 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √4623 = 6767 x 69 = 4623∴ Required product = 71 x 73 = 5183
Number System 486+32×25—59=? 582 567 596 528 582 567 596 528 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 528
Number System Look at this series: 1000, 200, 40, ... What number should come next? 2 24 14 8 2 24 14 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP This is a simple division series. Each number is divided by 5. Rule = (1st number / 5 = 2nd number) (2nd number / 5 = 3rd number)....Now, (1000 / 5 = 200), (200 / 5 = 40), (40 / 5 = 8)...So answer is a = 8.
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