Two machines, Y and Z, work at constant rates producing identical items. Machine Y produces 3 items in the same time Machine Z p

Question

2 years ago

6

Two machines, Y and Z, work at constant rates producing identical items. Machine Y produces 3 items in the same time Machine Z p

roduces 2 items. If machine Y takes 9 minutes to produce a batch of items, how many minutes does it take for machine Z to produce the same number of items?
A. 6
B. 9
C. 9 1/2
D. 12
E. 13 1/2

Mathematics

1 answer:

umka2103 [35] · Answer 1 · 2022-09-11T15:06:13+03:00

umka2103 [35]2 years ago

8 0

Answer:

E. 13 1/2

Step-by-step explanation:

As two machine Y and Z at constant rate is in 3/2 .So if a machine Y is working 3/2 then the rate of other machine Z is 2/3 time take. Y take 9 minutes.So, 9 = (2/3) the time

so T = 9 * 3 / 2

T = 13.5

So option E is true.