A certain sum amounts to Rs. 3825 in 4 years and to Rs. 4050 in 6 years. find the percent and the sum.
Answers
Answered by
0
Step-by-step explanation:
Simple interest for 2 years = Rs. 4050 - Rs. 3825 = Rs. 225
And simple interest for 4 years = Rs. 225*2 = 450 Rs.
So, Principal = Rs. 3825 - Rs.450 = Rs. 3375
Now,
Simple interest = (P*R*T)/100
450 = (3375*R*4)/100
13500R = 45000
R = 45000/13500
Rate of interest = 10/3 %
Therefore, Rate of interest is 10/3 % and Principal is Rs. 3375
Answered by
12
Given:
- Amount in 4 years = Rs. 3825
- Amount in 6 years = Rs. 4050
Need To Find:
- Principal (P) = ?
- Rate (R) = ?
Explanation:
Simple interest for 2 years
➠ 4050 - 3825
➠ Rs. 225
Simple interest for 4 years
➠ 225 × 2
➠ Rs.450
So,
P = Rs 3825 - 450
➠ 3375
- Principal = Rs. 3375
Formula used here:
- SI = P × R × T / 100
Putting the values according to the given formula:
➠ 450 = 3375 × R × 4/100
➠ Then, R = 45000/13500
➠ R = 10/3 %
Additional Information:
Here,
- P is used for Principal.
- R is used for Rate.
- T is used for Time.
- SI is used for Simple Interest.
Similar questions