ABC26GN5389 · True Discount
Subject: General Aptitude · Chapter: True Discount · Exam: · Marks: · Difficulty:
The difference between the simple interest and true discount on a certain sum of money for 6 months at 1 12 % per annum is ` 25. Find the sum. 2
Answer
Explanation
Let the sum be ` x. Then, 25 1 x×× T.D. = 2 2 = x × 25 × 4 = x . 25 1 4 425 17 100 + × 2 2 25 1 1 x S.I. = x × × × = . 2 2 100 16 x x ∴ − = 25 ⇒ 17x – 16x = 25 × 16 × 17 ⇒ x = 6800. 16 17 Hence, sum due = ` 6800.
Explanation as extracted from the printed page; notation may be imperfect.
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