Subject :NSO Class : Class 5
48 is a common multiple of number X and number Y. The number X is 3 times of the number Y. The sum of digits X is 6. Total number of factors of the number X is _____.
(A) 6
(B) 7
(C) 5
(D) 8
Ans 1:
Class : Class 9
THE ANSWER IS 8.I SAY THAT BECAUSE X=24 AND Y=8.SO, THERE ARE 8 FACTORS FOR 24.
Ans 2:
Class : Class 6
As X is a number with sum of digits 6, then we have options, 15,51,24,42,33 as X but we are given that X has a multiple as 48 so X can only be 24 from the given options. So, X is 24 and as X is 3 times of Y so Y is 8(3x8=24). Now we have to tell the number of factors of X i.e. 24
1, 2,3,4,6,8,12,24
Thus the number of factors of 24 is ------>8
Hence the answer is option(D)
Ans 3:
Class : Class 8