Question

A works twice as fast as B. If B can complete a work in 12 days independently. The number of
days in which A and B can together finish the work is :
(1) 4 days
(2) 6 days
(3) 8 days
(4) 18 days
(5) None of these​

Answer 1

Answer:

4 is correct answer l hope its helpful to you ☺☺☺☺☺☺

Answer 2

Given:

• Ratio of rates of working of A and B = 2 : 1.
• So, ratio of times taken = 1 : 2.
• B's 1 day's work = 1/12

Find:

• The number of days in which A and B can together finish the work is = ?

Solution:

∴ A's one day's work= 1/6 (2 times the work of B)

(A+B)'s one day's work= 1/6 + 1/12

= 3/12 = 1/4

• So, A and B together can finish the work in 4 days.

⚘ So, The Correct Answer Is 4 Days! ✔

IᴛsPɪᴋᴀᴄʜᴜ_࿐