Tommy and Emma collected 77 seashells last week. For every 7 seashells that Tommy collected. Emma collected 4. How many more seashells were in Tommy’s collection?

Answer 1

A. 21

B. 42

C. 11

D. 7

Answer 2

Yes, A is correct.

Answer 3

Yes

Answer 4

The method how you get the answer is much more important
than just having the answer.
Knowing the answer teaches you absolutely nothing!!!

Tommy collected 7x
Emma collected 4x
7x+4x = 77
11x = 77
x = 7

Tommy had 49
Emma had 28
Difference = 21