Question

The average of five consecutive number is 20.the largest number of these numbers is

Answer 1

Answer:

let first no. be x

$(x + x + 1 + x + 2 + x + 3 + x + 4) \div 5 = 20 \\ 5x + 10 = 100 \\ 5x = 90 \\ x = 18$

largest no. = x+4

=18+4

=22