Number System What is the value of ? in the following equations ? 72/? = ?/50 80 100 60 40 80 100 60 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
Number System How many numbers up to 200 are divisible by 2 and 3 both? 29 33 27 35 29 33 27 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 200/6 = 33 2/6 => 33 Numbers
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.584 8.684 8.484 8.784 8.584 8.684 8.484 8.784 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
Number System The average of five consecutive even numbers, p, q, r, s and t is 40. What is the product of 'r' and 's' ? 1580 1680 1780 1480 1580 1680 1780 1480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x, x + 2, x + 4, x + 6, and x + 8Avg = x + x + 2 + x + 4 + x + 6 + x + 8/5 = 40Therefore, 5x + 20 = 200Therefore, x = 180/5 = 36Therefore, r = x + 4 = 40 s = x + 6 = 42Therefore, Product = 1680
Number System What is the least number, which is perfect square but contains 2700 as its factor? 1800 5400 2700 10800 1800 5400 2700 10800 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
Number System 106 * 106 - 94 * 94 = ? 1904 1906 2400 2000 1904 1906 2400 2000 ANSWER DOWNLOAD EXAMIANS APP
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