Question

4. Find the principal in each of the following:
() A = * 800, Rate = 12.5% p.a., Time = 2 years​

Answer 1

Step-by-step explanation:

As we know,

Amount = Principal + SI

A/Q

800 = P× R×T /100 + P

800 = P×12.5×2 /100 +P

800 = P × 25/ 100 + P

800 = P × 1/4 + P

800 = P/4 + P

800 = P+4P/4

800 = 5P/4

800×4 = 5P

800×4÷ 5 = P

160×4 = P

640 = P

or,

P = ₹ 640

Missing - ₹ and ℅