Question

Find the ratio in which rice at rs. 7.20 a kg be mixed with rice at rs. 5.70 a kg to produce a mixture worth rs. 6.30 a kg. 1 : 3 2 : 3 3 : 4 4 : 5

Answer 1

please do not forget to rate me !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 2

Dear Student,

● Answer -

2:3

● Explanation -

Suppose x and y be amount of ₹ 7.20 /kg and ₹ 5.70 /kg rice.

Average price of rice is calculated by -

6.30 = (x × 7.20 + y × 5.70) / (x + y)

6.3x + 6.3y = 7.2x + 5.7y

7.2x - 6.3x = 6.3y - 5.7y

0.9x = 0.6y

x/y = 0.6/0.9

x/y = 2/3

Hence, ratio of amount of ₹ 7.20 /kg and ₹ 5.70 /kg rice mixed is 2:3.

Thanks dear. Hope this helps you...