Question

The ratio of daily worth of A and B is 4:3. If A can do a work in 12 days, then find the number of days required by B to do the work.​

Answer 1

Answer:

9 days

Step-by-step explanation:

A can do a work in 4x days

B can do a work in 3x days

A:B = 4:3

4x = 12

x = 3

3x = 3×3 = 9

So, B can compete a work in 9 days.

For check, A:B = 12:9 = 4:3  

Answer 2

Answer:

B can do the work in 9 days.

Step-by-step explanation:

Given : The ratio of daily work of A and B is 4 : 3.

A can do a work in 12 days.

Let us suppose that B can do the work in x days.

According to question:

4 : 3 = 12 : x

→ 4x = 12 × 3 [cross multiplication]

→ 4x = 36

→ x = 9

#shivam