Number System 65 x 288 ÷ 52 = 1.8 x ? 200 210 180 190 200 210 180 190 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 65x288/52x1.8 = 200
Number System Find the least number when successively divided by 2, 3 and 7 leaves remainders 1, 2 and 3 respectively? 75 65 61 67 75 65 61 67 ANSWER DOWNLOAD EXAMIANS APP
Number System 432+2170+35=? 494 678 523 729 494 678 523 729 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 494
Number System The sum of the two digits of a two-digit number is 15 and the difference between the two digits of the two digit number is 3. What is the product of the two digits of the two digit number ? 14 54 None of these 36 14 54 None of these 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10 x + yWhere x > yAccording to the question,x + y = 15 and x - y = 3Solving both the equations,x = 9, y = 6∴ x x y = 9 x 6 = 54
Number System If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number. 94 97 86 91 94 97 86 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 94
Number System An urn contains 9 blue, 7 white and 4 black balls. If 2 balls are drawn at random, then what is the probability that only one ball is white ? 90/190 92/190 91/190 89/190 90/190 92/190 91/190 89/190 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total possible outcomes = 20C2 = 20 x 19/1 x 2 = 190Total favourable outcomes = 7C1 x 13C1 = 7 x 13 = 91∴ Required probability = 91/190
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