Question

Jenny ran 4 4/5 miles on Saturday and 6 2/5 miles on sunday. How many miles should she run on monday if she wants her average run for the three days to be 5 miles

Answer 1

3.8 miles

Explanation:

Given data

Saturday= 4 4/5 miles= 24/5= 4.8 miles

Sunday= 6 2/5 miles = 32/5=6.4 miles

Monday= x miles

Average= 5 miles

We know that

Average= Sum of data/Number of data

5= 4.8+6.4+x/3

cross multiply

5*3= 4.8+6.4+x

15= 11.2+x

x= 15-11.2

x=3.8 miles