Question

jack has three red balls. five blue balls and four black balls. the average price of red balls is rs 7 and that of the blue ball is rs. 6.if the average price of the black ball is rs. 5.then find the average price of all the balls​

Answer 1

Answer:

5.91 rupees

Step-by-step explanation:

No of red balls - 3

No of blue balls - 5

No of black balls - 4

Avg. price of red balls - 7 rupees

Avg. price of blue balls - 6 rupees

Avg. price of black balls - 5 rupees

Total number of balls - 12

Cost of all balls - 71 rupees

Avg price = Total price

No of balls

= 71

12

= 5.91