A sum of money lent out at S.I. amounts to Rs. 780 after 2 years and to Rs. 1020 after a further ...

A sum of money lent out at S.I. amounts to Rs. 780 after 2 years and to Rs. 1020 after a further period of 5 years. The sum is?

Answer/Solution

s. 684

Steps/Work

S.I for 5 years = (1020 - 780) = Rs. 240.
S.I. for 2 years = 240/5 * 2 = Rs. 96.
Principal = (780 - 96) = Rs. 684
ANSWER:A

General Calculator / Auto Solver

A sum of money lent out at s. I. Amounts to $ after years and to $ after a further period of years. The sum is?

Calculated Answer

684

Step by Step Solution

In order to solve problem, you must evaluate n₀ - n₁ * (n₂ - n₀) / n₃.

n₀ =	780
n₁ =	2
n₂ =	1020
n₃ =	5

n₀ - n₁ * (n₂ - n₀) / n₃
Evaluate n₂ - n₀ = 240
n₀ - n₁ * 240 / n₃
Evaluate 240 / n₃ = 48
n₀ - n₁ * 48
Evaluate n₁ * 48 = 96
n₀ - 96
Evaluate n₀ - 96 = 684
684
The answer to the problem and the result of n₀ - n₁ * (n₂ - n₀) / n₃ is 684