Frankie can plant a garden by herself in 10 hours. when her son garyn her, the total time it takes them to plant the garden is 4 hours. how long would it take garyn to plant the garden himself?

Step-by-step explanation:

step 1

we know that

Frankie can plant a garden by herself in 10 hours

so

100% of the work -------> 10 hours

Using proportion

Find the percentage he can do in 1 hour

step 2

we know that

When her son Garyn helps her, the total time it takes them to plant the garden is 4 hours

so

100% of the work (Frankie and Garyn) -------> 4 hours

Remember that

Frankie in 1 hour can do 10%

so

Frankie in 4 hours can do----------> 10%*4=40%

therefore

Garyn in 4 hours can do--------> 100%-40%=60%

step 3

using proportion

Find how long would it take Garyn to plant the garden himself

you answer is a

step-by-step explanation:

c

step-by-step explanation: