Formula: 1 Mark
Steps: 2 Marks
Answer: 1 Mark
Given,
Meena pays an interest of ₹ 45 for one year.
The rate of interest is 9 %
Interest = ₹ 45
Time = 1 year
Rate of interest = 9%
Let the principal be P
We know that,
S.I=P×R×T100
45=P×9×1100
⇒P =45×1009
∴P = ₹ 500
The sum she borrowed is ₹ 500.
The net amount she will pay at the end of one year = 500 + 45 = ₹ 545.