Number System Three numbers are in ratio of 3: 4 :5. If the sum of first & third numbers is more than second number by 52, which will be largest number? 23 65 78 34 23 65 78 34 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 65
Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 7 3 5 11 7 3 5 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System √2304 x √? = 2832 3581 3481 3381 3681 3581 3481 3381 3681 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √2304 x √? = 2832= 48 x √? = 2832= √? = 2832/48 = 59∴? = 59 x 59 = 3481
Number System If the sum of four consecutive numbers is 370, which the following is the third lowest number among them 90 89 92 91 90 89 92 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four consecutive numbers be x, (x + 1), (x + 2), (x + 3) thenx + (x + 1) + (x + 2) + (x + 3) = 370= 4x + 6 = 370∴ x = 364/4 = 91∴ third lowest number among them = x + 1= 91 + 1 = 92
Number System Find the greatest number which leaves the same remainder when it divides 25, 57 and 105. 12 16 18 8 12 16 18 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 105 - 57 = 4857 - 25 = 32105 - 25 = 80The H.C.F of 32, 48 and 80 is 16.
Number System √207.36 = ? 12.3 15.7 16.7 14.4 12.3 15.7 16.7 14.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √207.36 = √20736/√100 = 144/10 = 14.4
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