If the simple interest on a certain sum of money for 4 years at the ra

1.	If the simple interest on a certain sum of money for 4 years at the rate of 12.5% is Rs. 400 less than its principal. Find the sum.1. 700 Rs.2. 400 Rs.3. 1200 Rs.4. 800 Rs.
Answer» Correct Answer - Option 4 : 800 Rs. Given: Time = 4 years Rate = 12.5% Formula used: Amount = Simple interest + Principal SI = (P x R x T)/100 where P = Principal, R = Rate of Interest, T = Time Period of the Loan/deposit in years, SI = Simple Interest Calculations: Let, the principal is P SI = (P x R x T)/100 ⇒ P - 400 = (P × 4 × 12.5)/100 ⇒ P - 400 = P × 4 × (1/8) ⇒ P - 400 = P/2 ⇒ 2P - 800 = P ⇒ P = 800 Rs. ∴ The sum is 800 Rs.

If the simple interest on a certain sum of money for 4 years at the rate of 12.5% is Rs. 400 less than its principal. Find the sum.1. 700 Rs.2. 400 Rs.3. 1200 Rs.4. 800 Rs.

Answer» Correct Answer - Option 4 : 800 Rs.

Given:

Time = 4 years

Rate = 12.5%

Formula used:

Amount = Simple interest + Principal

SI = (P x R x T)/100

where P = Principal,

R = Rate of Interest,
T = Time Period of the Loan/deposit in years,
SI = Simple Interest

Calculations:

Let, the principal is P

SI = (P x R x T)/100

⇒ P - 400 = (P × 4 × 12.5)/100

⇒ P - 400 = P × 4 × (1/8)

⇒ P - 400 = P/2

⇒ 2P - 800 = P

⇒ P = 800 Rs.

∴ The sum is 800 Rs.

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If the simple interest on a certain sum of money for 4 years at the rate of 12.5% is Rs. 400 less than its principal. Find the sum.1. 700 Rs.2. 400 Rs.3. 1200 Rs.4. 800 Rs.

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