Number System What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ? 3434 4545 5656 7878 3434 4545 5656 7878 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 15, (15 + 2) x 3 = 51,(51 + 3) x 3 = 162, (162 + 4) x 3 = 498, (498 + 5) x 3 = 1509(1509 + 6) x 3 = 4545
Number System If one third of 3/4 of a number is 21. Then find the number? 84 630 63 840 84 630 63 840 ANSWER DOWNLOAD EXAMIANS APP
Number System {3√4913}² = ? 225 289 333 121 225 289 333 121 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (3√4913)² = (17)² = 289
Number System 64% of 2650+40% 0f 320=? 1578 2096 1824 1247 1578 2096 1824 1247 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
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 1/5 8/5 3/5 7/5 1/5 8/5 3/5 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
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