IPM , IMO STD V

Nanu visits a grocery store. With the money in per purse, if she buys 6 kgs of rice, she will be short by Rs 6, and if she buys 8 kgs of rice, then she will be short by Rs 14. What is the money Nanu is carrying in her purse?

Answer:

8 kg of rice = money in purse + Rs 14

6 kg of rice = money in purse + Rs 6

So, for 2 kg of extra rice purchase Nanu has to shell out Rs 8 more, which means for every KG of rice, Nanu pays Rs 4.

So, the amount she has in her purse = 6 x 4 – 6  = 24 – 6 = Rs 18