Question

calculate simple interest on Rs.80000 for 2 1/2 years at 10% p.a

Answer 1

SI=P×R×T/100
=80000×10×21/2=8400000/100
84000
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Answer 2

hey dear

here is your answer

Given are

principal is rs80,000

rate is 10% p. a

time is 2 1/2 ( converted into proper fraction is 5/2)


so we use simple interest formula

$p \times r \times t \div 100$

this is the formula

So,

given values put in this formula

80,000*10* 5/2 /100

we simply this simply

and we got after simplifying

20,000 it is a simple interest

So, answer is SI = 20,000

hope it helps

thank you