Question

A and b can make paintings in 6 days, b and c can can make those paintings in 10 days. If a, b and c together can finish the work in 4 days, then a and c together will do it in ________ days *

Answer 1

Answer:

I think the answer is 8

Step-by-step explanation:

so 8 days are required

mark me as a brainliest

Answer 2

A and C together will make paintings = $\frac{60}{14}= 4\frac{2}{7} days$

Step-by-step explanation:

A and B make paintings = 6 days

B and C make paintings = 10 days

number of days A,B,C can make paintings = 4 days

taking LCM of 6,10,4 we get LCM = 60

i.e number of total units = 60

then

efficiency  of A and B = $\frac{60}{6}= 10$

efficiency  of B and C = $\frac{60}{10}= 6$

efficiency  of A ,  B and C= $\frac{60}{4}= 15$

now ,

A + B+ C = 15

10 + C= 15

C = 5

A+B +C = 15

A+ 6 = 15

A = 9

So, efficiency of  A and C is 14

then

number of days A and C together will make paintings = $\frac{60}{14}= 4\frac{2}{7} days$

hence ,  A and C together will make paintings = $\frac{60}{14}= 4\frac{2}{7} days$

#Learn more :

A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in

https://brainly.in/question/13879897