Book Maths Puzzle

If 1=25
2=35
3=55
4=65
5=95
6=?

Read Solution (Total 4)

Book Other Question

Find the odd one out :
100,10,100,20,90,30,90,50
the mean temperature of the week on a certain city is 25 C
the mean temperature of Monday to Thursday is 23
the mean temperature of thursday to sunday is 28 C find the temperature on thrusday