I f A and B together can complete a work in 18 days, A and C in 12 days, Band Cin 9 days, then B alone can do it in …….days.
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Answered by
0
Answer:
24 days is the correct answer
Step-by-step explanation:
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Answered by
0
Answer:
24days
Step-by-step explanation:
A +B =18days
A+C =12days
B+C=9 days
LCM of 18,12&9 is 36
efficiency of A+B = 36/18 = 2 ( eq1
efficiency of A+C= 36/12=3 (eq2
efficiency of B+C 36/9=4 (eq3
add eq 1,2,3
2(A+B+C) =9
A+B+C = 9/2 =4.5
we know efficiency of A+C =3
B+3 =4.5
B=1.5
efficiency of B =1.5
required work days for B, =36/1.5
=24days
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