Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 25/144 5/12 144/25 12/5 25/144 5/12 144/25 12/5 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 (12)² - (4.4)² - (0.04)² = ? 125.6384 131.6384 129.6384 124.6384 125.6384 131.6384 129.6384 124.6384 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (12)² - (4.4)² - (0.04)²= 144 - 19.36 - 0.0016= 124.64 - 0.0016= 124.6384
Number System In a division sum, the quotient is 120, the divisor 456 and the remainder 333, find the dividend? 50553 55053 5553 56053 50553 55053 5553 56053 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 120 * 456 + 333 = 55053
Number System If the sum of five consecutive even numbers A, B, C, D and E is 130, what is the product of A and E ? 720 840 660 780 720 840 660 780 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the consecutive even numbers be A = 2x, B = 2x + 2, C = 2x + 4, D = 2x + 6 and E = 2x + 8= A + B + C + D + E = 130= 10x + 20 = 130∴ x = 130 - 20/10 = 11Therefore, product of A and E= 22 x 30 = 660
Number System √343 = ? 19 20 21 18 19 20 21 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √343 = 18
Number System The difference between a number and its three-fifth is 50. What is the number? 100 125 75 None of these 100 125 75 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x - 3/5 x = 50 => 2/5 x = 50x = (50 * 5)/2 = 125.
EXAMIANS