Question

i) find the formula for the sum s of any four consecutive numbers.
ii) find the number if the sum is 42.​

Answer 1

Step-by-step explanation:

i) 4n+6

n+n+1+n+2+n+3=4n+6

ii) 4n+6=42

4n=36

n=36/4=9

the numbers are 9,10,11,12