Number System If 70% of an equal to 40% of b, then ratio between a and b is? 7: 4 7: 11 None 4: 7 7: 4 7: 11 None 4: 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 70 a = 40 ba: b = 4: 7
Number System If the sum of one-half of a number exceeds one-third of that number by 7 1/3, the number is: 18 20 15 30 18 20 15 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,(1/2 x + 1/5 x) - 1/3 x = 22/311/30 x = 22/3x = 20
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 ? 54 None of these 14 36 54 None of these 14 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 In how many different ways can the letters of word "COLLEGE" be arranged ? 1240 1280 1300 1260 1240 1280 1300 1260 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 7!/2!2! = 1260(∵ L and E come twice)
Number System A number exceeds by 25 from its 3/8 part. Then the number is? 39 32 35 40 39 32 35 40 ANSWER DOWNLOAD EXAMIANS APP
Number System Find the greatest four digit number which leaves respective remainders of 2 and 5 when divided by 15 and 24. 9565 9125 9974 None of these 9565 9125 9974 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Since the difference between the divisors and the respective remainders is not constant, back substitution is the convenient method. None of the given numbers is satisfying the condition.
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