Question

Find the Time when :
(a) Principal=₹1000. S.I=₹350. R=7%
(b) Principal=₹2500. S.I=₹175. R=8 1/2%
(c)Principal=₹4000. S.I=₹800 R=₹8%








This Questions Right Answer is-
(a)5years
(b)14/17 years
(c)2 1/2 years







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Answer 1

Step-by-step explanation:

formula of simple interest

SI = ( P × R × T ) / 100

so formula for time t = ( SI × 100 )/ ( P × R )

a) Principal=₹1000. S.I=₹350. R=7%

time t = (350 × 100)/ (1000×7)

t = 5 years

b) Principal=₹2500. S.I=₹175. R=8 1/2%

time t = ( 175×100)/ (2500 × 8.5)

t = 14/17 years

c) Principal=₹4000. S.I=₹800 R=₹8%

time t = ( 800 × 100 )/ (4000× 8)

t= 2.5 years