Question

how many multiples of 7 lie between 13 and 256 also find thier sum

Answer 1

Question ⤵️

how many multiples lie between 13 and 256 also find thier sum.

Answer ⤵️

Clearly, the numbers between 10 and 250 which are multiple of 4 are 12,16,20,...,248.

This is an AP with first term a=12, common difference d=4.

Let there be n terms in this AP, then

${a}^{n } =248⇒a+(n−1)d=248</p><p>⇒12+(n−1)×4=248</p><p>⇒(n−1)=59</p><p>⇒n=60$

Hope it helps you ✌️

Step-by-step explanation:

please make me brainliest