Can you help

Question

A big bug ate 54 smaller bugs in 4 days. Each day it ate 5 more bugs than it did on the previous day. How many small bugs did the bug eat on the 4th day?

Answer 1

b represents the number of bugs eaten on the first day

b + 5, second day

b + 10, third day

b + 15, fourth day

 

4b + 30 = 54

4b = 24

b = 6

 

How many bugs on day four?