Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 3 11 5 7 3 11 5 7 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 Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 12/5 5/12 25/144 144/25 12/5 5/12 25/144 144/25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,2/3 x = 25/216 * 1/xx2 = 25/216 * 3/2 = 25/144 x = 5/12
Number System By how much is 3/5th of 875 greater than 2/3 of 333? 303 362 233 199 303 362 233 199 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/5th of 875 is greater than 2/3rd of 333= 3/5 * 875 - 2/3 * 333= 525 - 222 = 303.
Number System A certain number when divided by 45 leaves a remainder 31, what is the remainder if the same number be divided by 15? 9 11 13 1 9 11 13 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 45 + 31 = 76/15 = 1 (Remainder)
Number System If the difference between a number and its three-fourth is 18, find the number. 68 72 61 57 68 72 61 57 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x - 3x/4 = 18= x/4 = 18= x = 4 x 18 = 72
Number System (4300731) - ? = 2535618 1675123 1765113 1775123 1865113 1675123 1765113 1775123 1865113 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 4300731 - x = 2535618Then, x = 4300731 - 2535618 = 1765113
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