A alone can finish a work in 20 days whereas, B can finish the work in 'x' days. Working together they can finish the work in 12 days. Find the value of 'x'.
Please help me guys . I will mark u as brainlist
Answers
Answered by
1
Answer:
X=30 days
Step-by-step explanation:
A can do a work in = 20 days
Let B can do the work in =X days
Both A and B can do the work in = 1/12 days
Therefore 1/20 + 1/X= 1/12
So 12 (X+20) = 20 X;
So 8X= 240 ; X= 30.
Therefore “B” can do the work alone in 30 - days.
pls mark as brainlist
Answered by
1
Step-by-step explanation:
A alone can finish the work in = 1/20 days
B alone can finish the work in = x days
when they both working together in =12 days
find the value of x
= 1/20-1/12
= 3-5/60
= -2/60
= -1/30
Reciprocal the -1/30 = 30/1 = 30
RESULT = B can finsh the work in 30 days.
MARK ME AS BRAINLIEST .........
Similar questions