Question

a vendor sells 10 toffee for a rupee gaining 20%. how many did he buy for a rupee

Answer 1

Answer:

12 toffee is the answer

Step-by-step explanation:

Let the toffees purchased for one rupee be x

then,

(x-10)/10 x 100 = 20

x-10 = (20 x 10)/100

x-10 = 2

x = 12

Answer 2

Answer:

The vendor bought 12 chocolates for 1 rupee

Step-by-step explanation:

Given that,

No.of toffees sold by vendor=10

Selling price of toffees=1₹

=>Cost of each chocolate is 0.1₹

Profit gained by vendor=20%

Let the Cost price of 1 toffee be x ₹,since the profit is given,we have an relation

$profit = \frac{SP - CP}{CP} \times 100$

Therefore,by substituting known values we get

$\frac{0.1 - x}{x} \times 100 = 20 \\ = > \frac{0.1}{x} = \frac{6}{5} = > x = \frac{1}{12}$

This gives us the cost price of one toffee.

Therefore,the vendor bought 12 chocolates for 1 rupee

#SPJ2