Question

Rupee 7000 left in a bank for 10 years at simple interest amounts to Rupees 9800.What would it amount to after another 5 years at the same rate

Answer 1

hey here,

principal = 9800 - 7000 = 2800

rate = 100 * 7000/ 2800 * 10

rate = 25℅

sum = 2800 , rate = 25℅ , time = 5 year

another si = 2800 * 25 * 5 /100

= 3500

amount = 2800 + 3500

= 6300rs..

hope it's help you

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Answer 2

in first case,
p=7000
t=10 yrs
a=9800
si=a-p
=9800-7000
=2800
si=prt/100
=2800=7000×r×10/100
=2800=700r
r=2800/700
=4%
in second case,
p=7000
r=4%
t=5yrs
si=prt/100
=7000×4×5/100
=1400
a=p+si
=7000+1400
=8400
pls mark my answer as brainliest if it helps you