Question

how many multiples of 4 lie between 10 and 250 solve by ap​

Answer 1

Answer:

12,16,20_____,248

a=12

d=4

an=248

an=a+(n-1)d

248=12+(n-1)4

236=4n-4

4n=240

n=60

Step-by-step explanation:

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Answer 2

First term in this series will be 12 and the last term will be 248.

Then the series will be 12,16,20……….248.

It is a arithmetic series with a = 12 and d = 4 and last term = 248.

so,

Sn = a + (n - 1) * d

=> 248 = 12 + (n-1) * 4

=> 248 = 12 + 4n - 4

=> 248 = 4n + 8

=> 4n = 240

=> n = 60

Therefore, 60 multiples of 4 lie between 10 and 250.