If Meena gives an interest of ₹45 for one year at 9% rate p.a. What is the sum she has borrowed?
Solve for principle amount
From the given detail we have,
Simple Interest S.I.=₹45
Rate R=9%
Time T=1year
Let P is the amount she has borrowed
∵S.I.=(P×R×T)100
45=(P×9×1)100
P=(45×100)9
=5×100=500
Hence she borrowed ₹500.