Question

Monica can complete a piece of work in 12 days. If Rachel works twice as fast as Monica, how many days will Rachel and Monica together take to finish the work?
a ) 2 days
b) 3 days
c) 4 days
d) 6 days

Answer 1

Answer:

B. 3

Step-by-step explanation:

If this is a wrong answer, feel free to point out

Answer 2

Answer: 4 days

Since Rachel works twice as fast, she will complete the work in 6 days.

Now to find the time taken if they worked together,

$\frac{1}{12}+ \frac{1}{6}=\frac{1}{4}$

How just reciprocate 1/4 to get 4

Rachel and Monica will take 4 days together take to finish the work