The interest on a certain deposit at 4.5% p.a. is TK. 202.50 in one year. How much will the additional interest in one year be on the same deposit at 5% p.a. ?
TK. 22.50
TK. 25
TK. 20.25
TK. 42.75
Description (বিবরণ) :
প্রশ্ন: The interest on a certain deposit at 4.5% p.a. is TK. 202.50 in one year. How much will the additional interest in one year be on the same deposit at 5% p.a. ?
ব্যাখ্যা:
For 4.5% p.a
I = pnr/100
P = I × 100/nr = ( 202.50 × 100)/( 1× 4.5) = 4500
for 5% p.a
I = pnr
= 4500 × 1 × 5/100 = 225
The total additional interest = ( 225 - 202.50)Tk. = 22.50tk.
