microwave puzzle

[FAIZE]

Good morning
another riddle


There is a microwave.

It takes 3 minutes at 500W and 1 minute at 1500W to heat a certain food.

So how many minutes will it take for 1000W?

 

[skeeter]

I would use this fact …

[imath]1 \text{ Watt } = 1 \dfrac{\text{ Joule}}{\text{ second}}[/imath]

 

[topsquark]

Good morning
another riddle


There is a microwave.

It takes 3 minutes at 500W and 1 minute at 1500W to heat a certain food.

So how many minutes will it take for 1000W?

Are these just riddles or questions you need help with?

-Dan

 

[FAIZE]

this is a problem and we want an explanation

 

[blamocur]

this is a problem and we want an explanation

What have you tried?

 

[Dr.Peterson]

Good morning
another riddle


There is a microwave.

It takes 3 minutes at 500W and 1 minute at 1500W to heat a certain food.

So how many minutes will it take for 1000W?

Think of it as a proportionality problem. (Will it be direct or inverse?)

 

[khansaheb]

Good morning
another riddle


There is a microwave.

It takes 3 minutes at 500W and 1 minute at 1500W to heat a certain food.

So how many minutes will it take for 1000W?

Cooking Food needs energy.

Energy (Joule) = Power (watt) * time (sec)

Continue.......

 

[khansaheb]

this is a problem and we want an explanation

Is this an assignment for an instructional class?