Qs no 05: State which of the following are divisible by 11 or not?
a- 15,315 =
b- 38,453=
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Answer:
No
According to divisibility test of 11
if the difference between addition of alternate digit of a num is 1 or 0 then it is divisible by 11
a) 15315
(1+3+5) - (1+1) =7
b) 38453
( 3+4+3 ) - ( 8+5 ) = -3
Hence both of the number are not divisible by 11
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