Sanford can assemble a computer in 60 minutes. Colleen can assemble a computer in 40 minutes. If they work together, how many minutes does it take them to assemble a computer?

5 minutes
6 minutes
20 minutes
24 minutes

Question

Sanford can assemble a computer in 60 minutes. Colleen can assemble a computer in 40 minutes. If they work together, how many minutes does it take them to assemble a computer?

 5 minutes
 6 minutes
 20 minutes
 24 minutes

anonymous · Answer

im thinking 20 mins am icorrect?

anonymous · Answer

to solve this, the easy way would be the product of the two divided by the sum of the two

anonymous · Answer

so 60x40/60+40

anonymous · Answer

I thought To solve this you do 1/x + 1/y and the denominator over the numerator of the solution is the answer.

anonymous · Answer

igot 1400

anonymous · Answer

I think you add 1/40 + 1/60. If they work together, it shouldn't be more than by themselves.

anonymous · Answer

there are multiple ways to solve this but the simplest and quickest is the product of the two divided by the sum of the two

anonymous · Answer

simply what is 60 times 40. divide that by 60 plus 40

anonymous · Answer

I wasn't taught that, but as long as it comes out with the right answer, it works! If it does, I would have learned something too.

anonymous · Answer

its always good to learn something new!

anonymous · Answer

okay so c is correct

anonymous · Answer

no the answer is not c

anonymous · Answer

Your way came out with 24, just like mine! I did learn something today!

anonymous · Answer

yep! learning something new every day!

anonymous · Answer

so d is correct thanks guys !

anonymous · Answer

no problem!

anonymous · Answer

I hope I helped some bit!