Question

How many multiples of 4 lie between 10 and 250

Answer 1

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

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

it is a arithmetic series with first term a=12 and common difference of 4.

with last term as 248.

so 248=12+(n-1)x4 (lets assume it has n such numbers.)

(n-1).4= 248–12=236

n-1=236/4=59

n=59+1=60.

so 60 multiples of 4 lie between 10 and 250.

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Answer 2

hey mate...
here is ur answer...
The first number in the sequence will be 12 and last number will be 248

So 12,16,20…248

This is In the form 12, 12+4,12+ 2*4, 12+3*4…,12+n*4

By arithmetic progression concept

12+ n*4 = 248

n=( 248–12)/4

n=59

n+1 th term is 248

So there are n+1 terms i.e 60 multiples

...
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