Question

sum of rupees 4000 is invested at 8% compound interest for the first year and at 10 % for the second year find the amount after 2 years​

Answer 1

Answer:

• The amount at the end of two years is Rs.4752

Step-by-step explanation:

Given:

• sum of rupees 4000 is invested at 8% compounded at the interest for the first year and at 10 % for the second year.

To Find:

• The amount at the end of second year when it is compounded at the given conditions

Solution:

→ Formula used :

• A = P [ 1 + r/100 ] [ 1 + R/100 ]

→ Here,

• Principal = 4,000
• r = 8%
• R = 10%

Substituting the values:

→ A = P [ 1 + r/100 ] [ 1 + R/100 ]

→ A = 4000 [ 1 + 8/100 ] [ 1 + 10/100 ]

→ A = 4000 [ 100/100 + 8/100 ] [ 100/100 + 10/100 ]

→ A = 4000 [ 108/100 ] [ 110/100 ]

→ A = 4000 × 108/100 × 110/100

→ A = 4 × 108 × 110/10

→ A = 47520/10

→ A = 4752

Therefore:

• The amount at the end of two years is Rs.4752