Question

Ted plays his guitar for 55 minutes a day, on Monday, Wednesday and Friday. How much time per week does Ted play his guitar?

• A. 2 hours 15 minutes
• B. 2 hours 30 minutes
• C. 2 hours 55 minutes
• D. 2 hours 45 minutes

Answer 1

The correct option is D 2 hours 45 minutes

Since Ted practises for 55 minutes , 3 days in a week (Monday, Wednesday and Friday), the total time Ted spends practising on his guitar per week is $55\times 3=165\text{minutes}.$

But, 165 minutes = 120 minutes + 45 minutes.
$1\text{hour}=60\text{minutes}$
$\Rightarrow 120\text{minutes}=\frac{120}{60}\text{hours}$
$=2\text{hours}$
$\Rightarrow 165\text{minutes}=2\text{hours}+45\text{minutes}$
Thus, the total time Ted practises guitar per week is 2 hours and 45 minutes.