While selling 15 balls for ₹1,220, there is loss equal to the cost price of 5 balls. The cost price (in ₹) of one ball is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 122.
Let cost price of 1 ball = x
Total CP of 15 balls = 15 x
Loss = CP of 5 balls = 5 x
SP of 15 balls = Total CP - Loss = 15 x - 5 x = 10 x
Given SP = 1220
10 x = 1220
x = 1220 / 10 = 122