If Meena solved 24 math problems in 15 minutes, how many problems can she solve in 40 minutes?

If Meena solved 24 math problems in 15 minutes, how many problems can she solve in 40 minutes?

Explanation

Meena's problem-solving rate per minute:
24 problems ÷ 15 minutes = 1.6 problems per minute

In 40 minutes:
1.6 × 40 = 64 problems.