Number System 5358 * 51 = ? 273258 273348 273358 273268 273258 273348 273358 273268 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5358 * 51 = 5358 * (50 + 1) = 5358 * 50 + 5358 * 1= 267900 + 5358 = 273258
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 60 260 120 180 60 260 120 180 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 3x/4 = 10800= x² = 10800 x 4/3 = 14400∴ x = √14400 = 120
Number System 2536+4851—?=3450+313 6784 3624 5243 4567 6784 3624 5243 4567 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3624
Number System If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is: 180 12 160 28 180 12 160 28 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then, x + y = 20 and x - y = 8x2 - y2 = (x + y)(x - y) = 20 * 8 = 160.
Number System (12)² - (4.4)² - (0.04)² = ? 131.6384 129.6384 125.6384 124.6384 131.6384 129.6384 125.6384 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 Find the least number when successively divided by 2, 3 and 7 leaves remainders 1, 2 and 3 respectively? 65 61 75 67 65 61 75 67 ANSWER DOWNLOAD EXAMIANS APP
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