It will take 30 minutes to type the proposal when working together.
Step-by-step explanation:
Given that Gina types a proposal in 90 minutes.The other person types a proposal in 45 minutes. If working together then you can calculate as follows;
In 1 minute, Gina types 1/90 of the proposal
In 1 minute, the other person types 1/45 of the proposal
When working together, they write 1/90+1/45 =3/90 of the proposal in 1 minute
So it will take 90/3 minutes to write the proposal when working together.
90/3 minutes = 30 minutes
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Applied math :https://brainly.com/question/13454390
Keywords: proposal, working, type
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