Question

1. What sum will amount to 6600 in 4 yrs at
8% per annum simple interest? jNV 2019)
11 6000 (2) 5000 (3) 4000
(4) 6200​

Answer 1

Answer:

option (2)

Step-by-step explanation:

Let principal amount be x

Also, interest = PRt / 100

principal amount +interest = toat sum

x + (x*8*4/100) =6600

x + (32x/100)=6600

(100x+ 32x)/100 = 6600

132x/100=6600

x=6600*100/132

x=5000

Answer 2

₹ 5000

Step-by-step explanation:

Given,

Amount (A) = ₹ 6600

Time (T) = 4 yr

Rate (R) = 8%

By using, Simple Interest =

Principal × Rate × Time / 100

SI = P × R × T/100

==> SI = P × 4 × 8/100

But, Amount (A) = P+SI

From Eq. (i),

A= P+(P×4×8/100)

==> 6600 = P+(8P/25)

==> 6600 = 33P/25

==> P = 200×25

P = ₹ 5000