A shopkeeper sells notebook at the rate of ₹12 per piece from a set of 40 notebooks. If he earns a profit of 20%, what is the cost price of the set? THE RIGHT ANSWER IS ₹400.. PLEASE SOLVE IT FAST
Answers
Answered by
0
Answer:
Rs. 400
Step-by-step explanation:
Cost of 1 Notebook = Rs. 12
No. of notebooks = 40
So, SP = 12 X 40 = Rs. 480
SP = Profit + CP
Let CP be x,
480 = 20% of x + x
480 = 20/100 X x + x
480 =20x/100 + 100x/100
480 = 120x/100
480 x 100/120 = x
400 = x
Therefore Cost Price of set is Rs. 400
Answered by
0
Answer:
cost price = ₹ 400
Step-by-step explanation:
total selling price of notebooks = 12 × 40 = ₹ 480
profit = 20% of cost price
selling price = profit + cost price
480 = 20x/100 + x
480 = x/5 + x
480 = 6x / 5
x = 5 × 480 / 6
x = 5 × 80
x = 400
cost price = ₹ 400
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