Number System When 732 is subtracted form the square of a number, the answer that is obtained is 5280. What is the number? 99 101 97 103 99 101 97 103 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.
Number System The sum of two numbers is 165 and the difference between them is 9. What is the average of these two numbers ? 83.5 84.5 85.5 82.5 83.5 84.5 85.5 82.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 165x - y = 92x = 174 ∴ x = 87 and y = 78∴ x + y/2 = 165/2 = 82.5
Number System The difference between 78% of a number and 59% of the same number is 323. What is 62% of that number ? Rs. 945 Rs. 926 Rs. 1054 Rs. 986 Rs. 945 Rs. 926 Rs. 1054 Rs. 986 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.78% of x - 59% of x = 323= 78x - 59x/100 = 323= 19x/100 = 323∴ x = 323 x 100/19 = 1700= 62% of 1700 = 1700 x 62/100 = 1054
Number System 728.038 x 54.978 - 72.016 x 85.250 = ? 23900 53900 33900 43900 23900 53900 33900 43900 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 728 x 55 - 72 x 85.25 = 40040 - 6138 = 339900
Number System 65% of 320+?=686 481 480 478 479 481 480 478 479 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 65% of 320+?=686 208+?=686?=686-208?=478
Number System On dividing number by 357, we get 39 as remainder. On dividing the same number by 17, what will be the remainder? 3 0 5 11 3 0 5 11 ANSWER DOWNLOAD EXAMIANS APP
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