48. A is thrice as good a workman as B and therefore is able to finish a in
60 days less than B. Working together, they can do it in
(a) 20 days (h) 29 days (c) 25 days (d) 30 days
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30 days
Step-by-step explanation:
A=3B
B=1units
A=3units
A+B=4 units
LCM (a,b)=120
- 120/4= 30days
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