Question

Madhu work 2whole1/2 hours on Monday,3whole1/4 hours on Tuesday and 2whole3/4 hours on Wednesday. What is the mean number of hours she worked on these three days?

Answer 1

Answer:

2 hours and 50 mins.

Step-by-step explanation:

$2 \frac{1}{2} + 3 \frac{3}{4 } + 3 \frac{1}{4} \\ = 2 \frac{1}{2} + 6 \frac{4}{4 } \\ = 2 \frac{1}{2} + 7 \\ = 9 \frac{1}{2} hours \: \\ 9 \times 60 + \frac{1}{2} \times 60 \\ = 480 + 30 \\ = 510 \\ \frac{510}{3} \\ = 170 \: mins \: \\ = 2 \: hours \: 50 \: mins$