Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 24 42 21 84 24 42 21 84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 180 60 260 120 180 60 260 120 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 Complete the series : 11, 12, 17, 18, 23, 24 ... None of these 14 12 30 None of these 14 12 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP None of these
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2678 2367 2520 2410 2678 2367 2520 2410 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
Number System What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12 3 9 7 2 3 9 7 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9
Number System What should come in place of question mark (?) in the following number series ? 7, 176, 480, 1058, 2188, 4426, ? 8888 8881 8884 8882 8888 8881 8884 8882 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Series is (No. + 9²) x 2, (+8²) x 2, (+7²) x 2, (+6²) x 2.......
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