Question

mohit went to a shop to buy 50kg of rice .He buys two varieties of rice which cost him rs4.50 per kg and rs 5.00per kg. he spends a total of rs 240. what was the quantity of less expensive rice bought by him

Answer 1

20kg rice mydear .....

Answer 2

Answer:

20 kg

Step-by-step explanation:

Let x be the amount of rice which cost rs4.50 per kg.

Cost of x kg of rice = 4.50x

Let y be the amount of rice which cost rs 5.00per kg

Cost of y kg of rice = 5y

Since we are given that he bought 50 kg of rice

So, equation becomes : $x+y=50$  -- 1

He spends a total of rs 240.

So, $4.5x+5y=240$  -- 2

Substitute the value of y from 1 in 2

$4.5x+5(50-x)=240$

$4.5x+250-5x=240$

$250-0.5x=240$

$10=0.5 x[/tex</p><p>[tex]x=20$

So, the quantity of less expensive rice bought by him was 20 kg