Thursday, 1 October 2009

DAY 142
If to my age there added be,
One half my age, one third my age,
And three times three,
Six score and ten the sum will be,
What is my age? Pray show it to me.

Answer:

66.......X + X/2 + X/3 + 9 = 130

DAY 143
If 3 salesmen can sell 3 stoves in 7 minutes, how many stoves can 6 salesmen sell in 70 minutes?

Answer:

60........One salesman can sell one stove in 7 minutes. In 70 minutes, one salesman can sell 10 stoves......six salesmen can sell 60 stoves

DAY 144
A man, his wife, and their two sons must cross a river. The man and woman each weigh 100 pounds, and the two boys weigh 50 pounds each. The rowboat can only hold 100 pounds at a time. All four are capable of rowing the boat. How do they all get across the river?

Answer:

The two boys cross first. One boy brings the boat back, and either the mother or father crosses. The other boy brings the boat back. Both boys cross again. One boy brings the boat back and the second adult crosses. The other boy brings the boat back and the two boys cross for the third and last time.

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