Posted by **TUHITUHI** on Friday, August 10, 2012 at 5:14am.

a merchant buys 2 quantities of rice at rs.60 and rs.40 per kg respectively.he pays at total of rs.10000. on the other hand he had paid a flat rate of rs.50 per kg. he would have paid 10% more. how many kg of each type of rice did he buy?

- math -
**Reiny**, Friday, August 10, 2012 at 8:46am
let the amount of rice at rs.60 be x kg

let the amount of rice at rs.40 be y kg

60x + 40y = 10000 ---> 3x+2y = 500

50(x+y) = 11000 -----> x+y = 220 or y = 220-x

sub back into the 1st

3x + 2(220-x) = 500

3x + 440 - 2x = 500

**x = 60 , then y = 220 - 60 = 160**

check:

60(60) + 160(40) = 10000 , check!

50(220) = 11000 , check!

## Answer This Question

## Related Questions

- math - a merchant buys 2 quantities of rice at Rs60 and Rs40 per kg respectively...
- Math - A dealer bought 5 quintals of rice for Rs.19 per kg paid Rs.500 on ...
- math - two employees X and Y are paid a total of rs. 550 per week by their ...
- investing - How do I find stock on margin rate of return? This is the question: ...
- algebra - mrs.Goh bought 4 bags of rice at $5.28 per bag ,5 packets of biscuits ...
- math check - 1.)Jenna earns $16,250 per year. She pays 6% of her earnings to her...
- Math - Sonja is paid $42.50 per hour as a veterinarian. She is paid 1 1/2 times ...
- Math - Two salesman Eman and Masood are paid a total of Rs. 550 per week by ...
- Math - Two salesman Eman and Masood are paid a total of Rs. 550 per week by ...
- Math - Two salesman Emaan and Masood are paid a total of Rs 550 per week by ...

More Related Questions