Question

t. Find the compound interest on 10000 at 5% p.a. for 2(1/2)
years, the interest payable yearly.
​

Answer 1

Answer:

₹1250

Step-by-step explanation:

SI= PRT/100

OR 10000×5×5/100×2

SIMPLIFYING

WE GET THE ANSWER AS ₹1250

ANS) ₹1250 IS PAYABLE INTEREST YEARLY

Answer 2

• Compound Interest =principal (1+rate/100)^n-Principal

Here, Principal=10000

Rate=5%

n=2( the value of n can't be a fraction)

Compound Interest =10000(1+5/100)^2-10000

=10000(105/100)^2-10000

=10000×105/100×105/100-10000

=105×105-10000

=11025-10000

=1025

• Now find Simple interest because 1/2 year was not taken in compound interest
• Simple Interest= P×R×T/100

Simple Interest=(10000×5×1/2)/100

=5000×5/100

=50×5

=250

• Therefore total interest= 1025+250=1275