Number System What should come in the place of ' ? ' in the following number series ? 2, 5, 9, 19, 37, ? 76 75 78 77 76 75 78 77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2 x 2 + 1 = 5;5 x 2 - 1 = 99 x 2 + 1 = 19: 19 x 2 - 1 = 3737 x 2 + 1 = 75
Number System What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ? 4545 7878 5656 3434 4545 7878 5656 3434 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 In how many different ways can the letters of the word 'DETERMINE' be arranged ? 62480 60480 63480 61480 62480 60480 63480 61480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of arrangements = 9! / 3! Because, E comes 3 times = 60480
Number System 7432 ÷ 32 x ? = 2787 41 12 78 21 41 12 78 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7432/32 x ? = 2787= ? = 2787 x 32/7432 = 12
Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? 4 2 None 6 4 2 None 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 8xy = 12(x – y)2 = (x + y)2 – 4xy (x – y)2 = 64 – 48 => (x – y) = 4
Number System In how many different ways can the letters of word "SENTENCE" be arranged ? 2360 3260 3360 6460 2360 3260 3360 6460 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 8!/3! 2! = 40320/12 = 3360
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