If the number 7x86038 is exactly divisible by 11, then the smallest whole number in place of x ?
If the number 7x86038 is exactly divisible by 11, then the smallest whole number in place of x ?
A. 1
B. 2
C. 3
D. 4
Answer : C. 3
Explanation:
The given number = 7×86038
Sum of the odd places = 8 + 0 + 8 + 7 = 23
Sum of the even places = 3 + 6 + x
(Sum of the odd places) - (Sum of even places) = Number (exactly divisible by 11)
23 - (9 + x) = divisible by 11
14 – x = divisible by 11.
X must be 3, to make given number divisible by 11.