Question

Which explanation best describes how to solve this problem?

Corey read 15 pages from his book each day for 5 days. He read 20 pages each day for the next 2 days.

How many pages did Corey read in the 7 days?

A.
Multiply 15 by 5. Add 20 to the product.

B.
Divide 15 by 5. Multiply 20 by 2. Add the product and the quotient.

C.
Add 15 and 20. Multiply the sum by 7.

D.
Multiply 15 by 5. Multiply 20 by 2. Add the two products.