Number System 217 * 217 + 183 * 183 = ? 80578 81268 80698 79698 80578 81268 80698 79698 ANSWER DOWNLOAD EXAMIANS APP
Number System Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 180 160 140 240 180 160 140 240 ANSWER DOWNLOAD EXAMIANS APP
Number System If the numerator of a fraction is decreased by 12.5% and the denominator is increased by 180% the resultant fraction is 1/2. What is the original fraction ? 7/5 3/5 1/5 8/5 7/5 3/5 1/5 8/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the original fraction be x/y.∴ x x 87.5/100/y x 280/100 = 1/2or 87.5x/280y = 1/2∴ 175x = 280y∴ x/y = 280/175 = 8/5
Number System What is the sum of 1 + 2 + 3+ ... + 27 ? 343 382 396 378 343 382 396 378 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Sum = 27 x (27 + 1)/2= 27 x 28/2= 27 x 14= 378
Number System Find the number of factors of 300 excluding 1 and itself. 16 15 18 14 16 15 18 14 ANSWER DOWNLOAD EXAMIANS APP
Number System 5358 * 51 = ? 273258 273358 273348 273268 273258 273358 273348 273268 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5358 * 51 = 5358 * (50 + 1) = 5358 * 50 + 5358 * 1= 267900 + 5358 = 273258
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