Question

Sadie finished her math test in sixteen minutes less than three times the amount of times it took her friend Laura to finish.if their combined times was 1 hour and 8 minutes,how long did it take Sadie?

Answer 1

Sadie took 47 minutes to finish her test.

Explanation:

Let Laura's time be x minutes.

Then we have:

x + 3x - 16 = 68

4x = 84

x = 21 minutes.

So Sadie took 3(21) - 16 = 63-16

= 47 minutes.