Question

a man by few number of books at Rs 72 each and a few number of pen Rs25 each if by 11 articles and pay RS 510 all together find the number of each article bought by him​

Answer 1

Step-by-step explanation:

Total no. of article = 11

Let x be the no. of books bought for RS 72 each

So, No. of pens bought for RS 25 each = 11-x

Cost of x books = 72x

Cost (11-x) pens = 25(11-x)

He buys 11 articles and pays RS 510 altogether

So,72x+25(11-x)=510

72x+275-25x=510

47x=510-275

x=\frac{510-275}{47}x=

47

510−275

x=5

So,No. of pens bought for RS 25 each = 11-x=11-5=6

Hence 6 pens and 5 books were bought by him.