IF A AND B CAN PAINT THE FENCE OF A PARK IN 8 DAYS, B AND C CAN PAINT THE SAME FENCE IN 12 DAYS, AND C AND A CAN FAINT THE FENCE IN 6 DAYS
THEN FIND THAT I HOW MUCH TIME WILL EACH OF THEM WOULD TAKE TO PAINT THE FENCE AND HOW MUCH TIME WOULD THEY TAKE IF ALL OF THEM WORKS TOGETHER TO PAINT THE FENCE
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para fence is painted by a,b and c in 2 days
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