Question

A shopkeeper buys some pens at 8 per pen and the same no. of pencil at 6 ruppees per pencil .He makes a 10% profit on the pens and a 20% profit on the pencils. At the end of day, all the pencils are sold out and he makes a profit of 320. Find the number of pens purchased​

Answer 1

Answer:

Let no of pens = x

No of pencils = No of pens

No of pencils = x

Profit

(8x × 10%) +(6x × 20%) = 320

(8x × 10 / 100) +(6x × 20 / 100) =320

(80x + 120x / 100) =320

200x / 100 =320

2x = 320

x = 320/2

x = 160

Step-by-step explanation: