Formula: 1 Mark
Steps: 2 Marks
Answer: 1 Mark
Monthly instalment = Rs 800
Time = 1 year = 12 months
Total amount deposited = Rs800×12=Rs 9600
Equivalent Principal for 1 month = Monthly instalment ×n(n+1)2
=Rs800×12(12+1)2=Rs400×12×13
= Rs 62400
Interest=P×R×T100
=62400×10×112×100=Rs520
∴ Matured value = Total amount deposited + Interest
= Rs 9600 + Rs 520 = Rs 10,120