Question

I purchased a box full of pencils at the rate of 7for rs5 and sold the whole box at rate of 9 for rs 8.in this prosses I gaind rs.44 how many pencils were contained in the box??

Answer 1

Answer:

Step-by-step explanation:

7 pencils cost=5 rs

1 pencil cost=5/7 rs

9 pencils sold=8 rs

1 pencil sold=8/9 rs

therefore,

profit on 1 pencil= (8/9)-(5/7)

                            =11/63 rs

total profit/gain=44 rs

therefore total pencils in the box were= 44/(11/63)

                                                                =44×(63/11)

                                                                =4×63

                                                                = 252