Question

In a sum of ₹ 300 is to be used to give five cash prize to students of a school for their overall academic performance.if each prize ₹20 less than its preceding prize find the value of each of the prize.​

Answer 1

Answer:

Let the value of the prices be

x,x−20,x−40, .....

This is an arithmetic sequence with first term (a)=xand common difference (d)=−20.

Given,

S

n

= 700

Sn =begin mathsize 12px style straight n over 2 end style [2a + (n - 1)d]

Thus, the values of the prizes are Rs. 160,Rs.140,Rs.120,Rs.100, Rs.80,Rs,60,andRs.40.

hope it help u, I m happy to help u :)

it's an example anyways (｡’▽’｡)