Moll purchases a grout mixture that contains 20 pounds of pea gravel,which costs 2 taka per pound ,and 30 pounds of concrete sand ,which costs 3 taka per pound ,If the mixture contains only pea gravel and concrete sand .What is the average cost per pound,in take ,for the entire grout mixture ?
Solution
Correct Answer: Option D
গড় মূল্য ={(20×2)+(30×3)}/20+30
=(40+30)/50
=130/50
=2.60 টাকা
=(40+30)/50
=130/50
=2.60 টাকা
Practice More Questions on Our App!
Download our app for free and access thousands of MCQ questions with detailed solutions