Question

Gabriel gets 100 dollars from his father. He spends 7 dollars each day to buy books. How much would he have spent in 5 days?

• A. 35 dollars
• B. 30 dollars
• C. 28 dollars
• D. 21 dollars

Answer 1

The correct option is A 35 dollars

The given sequence is 7, 14, 21, 28.

This is an increasing pattern.

Difference between the first and the second terms = 14 - 7 = 7

Difference between the second and the third terms = 21 - 14 = 7

Hence, 7 must be added to a term to get the next term.

Now, the next term in the sequence is 28 + 7 = 35

Hence, after 5 days, he would have spent 35 dollars.