Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 24 21 84 42 24 21 84 42 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System 4.78% of 1255 + 3.24% of 440=0.5% of ? 13849 14849 11849 12849 13849 14849 11849 12849 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.5 x ?/100 = 4.78 x 1255/100 + 3.24 x 440/100= 59.989 + 14.256∴ ? = 74.245 x 100/0.5 = 14849
Number System 7.8 x 4.5 x 4.2/0.14 = ? 1087 1012 1053 1032 1087 1012 1053 1032 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 4.5 x 4.2/0.14 = 1053
Number System In a two-digit number, the digit in unit's place is two more than three times the digit in ten's place. If the sum of the two digits is 10, what is the number ? 18 28 24 22 18 28 24 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.∴ y = 3x + 2 .......(i)And, x + y = 10 ......(ii)From (i) and (ii), x = 2, y = 8∴ Number = 28
Number System What least number must be subtracted from 2641 so that the remainder left, when divided by 10,15 and 25, is 7 in each case ? 94 84 81 87 94 84 81 87 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP LCM of 10, 15, 25 = 150When we drive 2641 by 150 the remainder is 91.But the remainder should be 7.So, the number to be subtracted from 2641 is 91 - 7 = 84.
Number System Find the least value of 3x + 4y if x2y3 = 6. 3 10 6 7 3 10 6 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
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