IF THE NUMBER 42573X IS EXACTLY DIVISIBLE BY 72 , THEN THE MINIMUM VALUE OF X IS ?
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Answer: 6
Explanation:
72 = 9 x8, where 9 and 8 are co-prime.
The minimum value of x for which 73 for which 73 is divisible by 8 is, 6.
Sum of digits in 425736 = (4 + 2 + 5 + 7 + 3 + 6) = 27, which is divisible by 9.
∴ Required value of X is 6.
Explanation:
72 = 9 x8, where 9 and 8 are co-prime.
The minimum value of x for which 73 for which 73 is divisible by 8 is, 6.
Sum of digits in 425736 = (4 + 2 + 5 + 7 + 3 + 6) = 27, which is divisible by 9.
∴ Required value of X is 6.
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