Correct Answer - Option 2 : 33.33%
Given:
CP of 3 cups = Rs. 40
CP of other 5 cups = Rs. 60
SP of 3 cups = Rs. 50
Concept used:
Gain % = (Profit/C.P.) × 100
Gain = S.P – C.P
Calculation:
Total CP of 8 cups = Rs. (40 + 60) = Rs. 100
S.P. of 8 cups = Rs. (50/3) × 8
⇒ Rs. 400/3
⇒ Gain = Rs. [(400/3) – 100]
⇒ Rs. 100/3
⇒ Gain% = [(100/3) ÷ 100] × 100%
⇒ 100/3% = 33.33%
∴ K incurred a gain of 33.33%