Question

Gina and Cara, working together, can rake the yard in 5 hours. Working alone, card takes five times as long as Jenna. How long does it take for Jenna to rake the yard alone?

Answer 1

Step 1:

From the first statement(Jena and Cara, working together, can rake the yard in 5 hours. ) means

Jena Time + Cara Time = 5

step 2:

Lets's Jena time = x

Then Cara is = 5x

x + 5x = 5

6x = 5

x = 5/6 = 0.833 Hours

meaning it taks Jena 5/6 or 0.833