Number System In how many different ways can the letters of the word "MOBILIZE" be arranged ? 20160 18456 17453 19765 20160 18456 17453 19765 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word MOBILIZE has eight letters in which I comes twice ∴ Number of arrangements = 8!/2! = 20160
Number System If the sum of five consecutive even numbers A, B, C, D and E is 130, what is the product of A and E ? 780 720 660 840 780 720 660 840 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the consecutive even numbers be A = 2x, B = 2x + 2, C = 2x + 4, D = 2x + 6 and E = 2x + 8= A + B + C + D + E = 130= 10x + 20 = 130∴ x = 130 - 20/10 = 11Therefore, product of A and E= 22 x 30 = 660
Number System How many numbers up to 200 are divisible by 2 and 3 both? 35 27 33 29 35 27 33 29 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 200/6 = 33 2/6 => 33 Numbers
Number System If the following fractions 7/6, 6/7, 5/3, 8/13 and 6/5 are arranged in descending order, which will be the last in the series? 9/13 8/13 7/13 6/13 9/13 8/13 7/13 6/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/6 = 1.166, 6/7 = 0.857,5/3 = 1.66,8/13 = 0.615,6/5 = 1.2Therefore, 5/3 > 6/5 > 7/6 > 6/7 > 8/13
Number System √2304 x √? = 2832 3481 3381 3581 3681 3481 3381 3581 3681 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √2304 x √? = 2832= 48 x √? = 2832= √? = 2832/48 = 59∴? = 59 x 59 = 3481
Number System If A = 1, B = 3, C = 5 and so on, what do the numbers 3, 9, 7 stand for BED BAT CAR CAT BED BAT CAR CAT ANSWER EXPLANATION DOWNLOAD EXAMIANS APP BED
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