Correct Answer - Option 3 : 42(6/7)
Given
20 samosas are sold
Profit earned = s.p of 6 samosas
Concept used
S.p = C.p + profit
Profit % = (profit × 100) / c.p
Calculation
S.p of 20 samosas = c.p of 20 samosas + s.p of 6 samosas
20 s.p = 20 c.p + 6 s.p
⇒ 14 s.p = 20 c.p
⇒ S.p : c.p
⇒ 10 : 7
Profit% = (3 ×100) / 7 = 42(6/7)%
∴ 42(6/7)% Profit is earned by Haldirams by selling 20 samosas
