Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2410 2367 2678 2520 2410 2367 2678 2520 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
Number System Find the least number when successively divided by 2, 3 and 7 leaves remainders 1, 2 and 3 respectively? 61 67 65 75 61 67 65 75 ANSWER DOWNLOAD EXAMIANS APP
Number System What should come in place of the question mark (?) in the given number series ? 888, 888, 444, 148, ?, 7.4 36 37 39 38 36 37 39 38 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let x be the missing number.Then888/888 = 1,888/444 = 2,444/148 = 3,148/x = 4= x = 148/4 = 37 and 37/7.4 = 5
Number System (4 86%of 6500) ÷ 36 =? 777.5 677.5 877.5 977.5 777.5 677.5 877.5 977.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 877.5
Number System If the numberator of a fraction is increased by 50% and denominator by 20% the fraction become 9/15. What was the original fraction ? 3/5 12/25 13/25 6/7 3/5 12/25 13/25 6/7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the fraction be x/yWe have 150x/120y = 9/15= x/y = 12/25
Number System 7.98 x 3.75 + 1.28 x 15.5 = ? 48.765 49.765 47.765 46.765 48.765 49.765 47.765 46.765 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 29.925 + 19.84 = 49.765
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