Question

find the sum on which as much interest is gained at 6% for 3 years as is gained on 900 at 8% for 2 years​

Answer 1

$\large{\underline{\red{\rm{AnswEr:}}}}$

$\bold\green{\underline{Principal:Rs.5000}}$

$\bold\purple{\underline{Simple\: Interest=Rs.800}}$

$\bold\orange{\underline{Given:}}$

Simple interest=Rs.900

Rate=6%

Time=3 years

$\bold\green{\underline{Find:The\:sum:}}$

$\bold\orange{\underline{Let:}}$

The sum be P

$\bold\purple{\underline{Solution:}}$

Using formula for sum here

$\bold\purple{\boxed{P=\frac{SI*100}{R*T}}}$

⟹P=900×100/6*3

⟹P=100×50

⟹P=5000

Given,in the question that if rate is 8% and time is 2years than simple interest=?

⟹SI=P×T×R/100

⟹SI=5000×2×8/100

⟹SI=50×2×8

⟹SI=800

Hence,

The sum=Rs.5000

The simple interest=Rs.800