Question

sudhar borrow rs 4368 which he promises to pay in 6 annual installment each installment being triple of the previous one find the first and last insta​

Answer 1

Answer:Given is sum of 30 installments is 4500. so total terms is 30 and sum of 30 terms is 4500.

and common differnece d is 10.

d=10

applying formula

S30=30/2(2a+(30-1)10)

by solving we get a=5.

so ap will be like this

5,15,25....

now 30 term will be

a+29d

5+29*10=295

so first installment is 5 and last is 295.

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation: