Number System Find the greatest number which leaves the same remainder when it divides 25, 57 and 105. 18 12 8 16 18 12 8 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 105 - 57 = 4857 - 25 = 32105 - 25 = 80The H.C.F of 32, 48 and 80 is 16.
Number System If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order of their values, which one will be fourth? 5/4 11/13 1/3 7/9 5/4 11/13 1/3 7/9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5/4
Number System What is the difference between the largest number and the least number written with the figures 3, 4, 7, 0, 3? 43883 70983 43893 43983 43883 70983 43893 43983 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 74330 Largest30347 Smallest-------------43983
Number System Subtracting 30 from a number, the remainder is one fourth of the number. Find the number? 30 45 22 1/2 40 30 45 22 1/2 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/4 x = 30 => x = 40
Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? None 6 4 2 None 6 4 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 8xy = 12(x – y)2 = (x + y)2 – 4xy (x – y)2 = 64 – 48 => (x – y) = 4
Number System The sum of the present age of a father and a son is 60 years. Five years before, the age of the father was four times that of son. What is the present age of the son ? 18 years 15 years 25 years 21 years 18 years 15 years 25 years 21 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the father's age be x and son's age yTherefore, x + y = 60 ....................(i)Five years back, (x - 5) = 4 (y - 5)x - 4y = - 15 ......................(2)Solving (1) and (2), x = 45 and y = 15
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