Question

By selling 40 orange for Rs.7 , a vendor gained 5 %.How many for a rupee did he buy?​

Answer 1

Answer:

S.P.=40×7=280

gain=5%

C.P.=100×280/105

=5600/21

So,1 orange cost rs 5600/21

Step-by-step explanation:

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Answer 2

Answer:

The shopkeeper bought 7 oranges for a rupee and sold them at a profit of 40% How many oranges did he sell for a rupee?

Cost price of 7 oranges = Re.1. Hence the selling price of 7 oranges is Rs.1.40 (with a profit of 40%).

If Rs. 1.40 is the selling price of 7 oranges

then Re.1.00 is the selling price of 1.00*7/1.40 or 5 oranges.

He sold 5 oranges for Re.1.