A certain umber when divided by 39 leaves a remainder 20, what is the remainder when the same number be divided by 13?
a) 7
b) 11
c) 0
d) 5
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A certain umber when divided by 39 leaves a remainder 20, what is the remainder when the same number be divided by 13?
a) 7
b) 11
c) 0
d) 5
A certain umber when divided by 39 leaves a remainder 20, what is the remainder when the same number be divided by 13?
a) 7
b) 11
c) 0
d) 5
Correct option: (a) 7
Explanation:
Let the number = x
Divisor (d) = 39
Remainder (r) = 20
X = (d x q) + r
X = (39 x q) + 20
When divided by “13”
X = 13 x 3 x q + 13 + 7
X =13 (3q + 1) + 7
Remainder = 7