Question 75

If the six digit number 15x1y2 is divisible by 44, then (x + y) is equal to:

Solution

15x1y2 will be divisible by 44

to divide that no it should be divided by 4 and 11 both

for divisibility by 4 the last two digit will be divided by 4 the last digit is 2 so y will be 3 ,5 ,7 and 9
but for divisibility by 11 the sum of odd digit places no - sum of even digit place no will be 0 or divisible by 11
y = 7 and x=0 then only this no will be divisible by 44
x+y=; 7+0=7

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