Question

How many numbers are there between 103
and 750 which are divisible by 6?
(a) 125 (b) 108
(c) 113 d) 107​

Answer 1

Answer:

Last number between 103 and 750 which is divisible by 6 (an) = 744

an=a1+(n-1)d

744=108+(n-1)6

744–108=(n-1)6

636=(n-1)6

636=6n-6

636+6=6n

642=6n

642/6=n

n=107

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