# What would be the simple interest on Rs. 8400 in 9 months at the rate of 8.25 percent per annum? - Mathematics and Statistics

Sum

What would be the simple interest on Rs. 8400 in 9 months at the rate of 8.25 percent per annum?

#### Solution

Principal P = ₹ 8400

Rate of interest R = 8.25%

Duration T = 9 months = 3/4 years

Simple interest = "PRT"/100

= (8400 xx 8.25)/100 xx 3/4

= 21 xx 33/4 xx 3 = (99 xx 21)/4

= 2079/4

= 519.75

∴ Simple interest would be ₹ 519.75.

Concept: Simple and Compound Interest
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#### APPEARS IN

Balbharati Mathematics and Statistics 2 (Commerce) 11th Standard HSC Maharashtra State Board
Chapter 9 Commercial Mathematics
Exercise 9.3 | Q 3 | Page 130