Question

George is making an elaborate meal. he can only cook one thing at a time in his microwave oven. his turkey takes 65 minutes; the pie takes 15 minutes; rolls take 60 seconds; and his coffee takes 45 seconds to heat. how much time does he need to cook the meal? when does he need to start in order to complete the cooking at 4:00pm?

Answer 1

operator nameEXPLANATION

STEP 1: Find the time taken to cook the meal.

The amount of time does George needs to cook the meal is the sum of all the time it would take to cook each of the individual meal

Therefore,

`\begin{gathered} \text{Total time=65mins+15mins+60secs+45secs} \\ =80\min utes\text{ 105 secs} \\ This\text{ can be rewritten as:} \\ =60\text{ mins+ 20mins +60secs +45secs} \\ \sin ce\text{ 60 mins=1hr and 60 secs = 1min} \\ \text{This gives;} \\ =1\text{hour 21mins 45secs} \end{gathered}`

STEP 2: Find the time he needs to start to cook the meal.

The right time to start cooking the meal is simply subtracting 1hour 21 mins 45 secs from 4.00 pm

1) Remove 1hour from 4.00 pm =3.00pm

2) Remove 21 mins from 3.00pm=2.39 pm

3)Remove 21 secs from 2.39pm= 2.38pm 15secs

Therefore the right time for George to start cooking is 15secs after 2.38pm