How much money did Gagan borrow from a bank? I. Gagan paid a total simple interest of ` 32000 at the end of 5 years. II. The interest at the end of 2 years was one-tenth of the money be borrowed.
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.
Explanation
Let the sum be ₹$x$. I. gives, S.I. = ₹32000, $T=5$ yrs. II. gives, S.I. $=₹\frac{x}{10}$, $T=2$ yrs. From II, we have: $R=\left(\frac{100 \times \text{S.I.}}{P \times T}\right)=\left(\frac{100 \times \frac{x}{10}}{x \times 2}\right)\%=5\%$. Using I, we get: $x=₹\left(\frac{100 \times 32000}{5 \times 5}\right)=₹128000$. Thus, I and II together give the answer. ∴ Correct answer is (e).
Explanation as extracted from the printed page; notation may be imperfect.