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by sanju09 » Sat Jun 19, 2010 12:26 am
A number is given as 987562153ab where a and b are digits. Which values of a and b, such that

a + b = 11 and a < b,


would result in 987562153ab being divisible by 4?

(A) a = 0 , b = 8
(B) a = 3 , b = 8
(C) a = 7 , b = 8
(D) a = 5 , b = 6
(E) a = 3 , b = 4
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by pradeepkaushal9518 » Sat Jun 19, 2010 12:31 am
imo d

a= 5 and b=6 satisfy the conditions
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by amising6 » Sat Jun 19, 2010 12:34 am
A number is given as 987562153ab where a and b are digits. Which values of a and b, such that

a + b = 11 and a < b,


would result in 987562153ab being divisible by 4?


987562153ab divisible by 4 last towdigit should be divisible by 4 i.e ab should be divisible by 4
a+b=11 a<b

so a and b can take following values( 2,9)(3,8)(4,7)(5,6)
out of this only 5,6 make sense
so a,b=56
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