Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 353 363 373 343 353 363 373 343 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
Number System Four-fifth of a number is 10 more than two-third of the same number. What is the number? 75 89 35 91 75 89 35 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 75
Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 660 515 556 720 660 515 556 720 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FRUGAL there ae six difference letters Therefore, 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720
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 ? 8/5 1/5 3/5 7/5 8/5 1/5 3/5 7/5 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 7.98 x 3.75 + 1.28 x 15.5 = ? 46.765 47.765 48.765 49.765 46.765 47.765 48.765 49.765 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 29.925 + 19.84 = 49.765
Number System What is the least number that should be added to 5200 to make it a perfect square ? 288 275 129 225 288 275 129 225 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP We sec (73)² = 5329 and (72)² = 5184ie 5329 > 5200 > 5184So 129 should be added to make is perfect square.
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