Question

You estimate that you can do 12 math problems in 45 minutes. How long should it take for you to do 20 math problems

Answer 1

Step-by-step explanation:

given:

12 maths problems =45 minutes

1 math problem=?

45 /12=3.75

now,1 math problem = 3.75

20 problems =20×3.75=75 minutes

therefore 20 maths problems = 1 hour 15 minutes

Answer 2

Step-by-step explanation:

12 maths problems =45 minutes

1 math problem=?

45 /12=3.75

now,1 math problem = 3.75

20 problems =20×3.75=75 minutes

therefore 20 maths problems = 1 hour 15 minutes