By selling 100 pencils, a shopkeeper gains the selling price of 20 pencils. His gain percent is · ABC26GN2658
Subject: General Aptitude · Chapter: Profit and Loss · Exam: S.S.C. 2007
By selling 100 pencils, a shopkeeper gains the selling price of 20 pencils. His gain percent is
(a)12
(b)15
(c)20
(d)25
Answer
Answer (as printed): D
Explanation
(S.P. of 100 pencils) - (C.P. of 100 pencils) = S.P. of 20 pencils ⇒ C.P. of 100 pencils = S.P. of 80 pencils. Let C.P. of each pencil be ₹ 1. Then, C.P. of 80 pencils = ₹ 80; S.P. of 80 pencils = ₹ 100. $$\text { ∴ Gain } \%=\left(\frac{20}{80} \times 100\right) \%=25 \% \text {. }$$
Explanation as extracted from the printed page; notation may be imperfect.