A ladder hangs over the side of a ship anchored in a port. The bottom rung touches the water. The distance between rungs is 20 cm and the length of the ladder is 180 cm. The tide is rising at the rate of 15 cm each hour.
When will the water reach the seventh rung from the top?
If the tide is raising water, then it is raising the ship on water, too. So water will reach still the first rung.
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I have three wings. At times I have 4 wings but still I cannot fly. I can rotate but I can't move from one place to other. People always relax in my company. Who am I?
7. I have three letters.
I read the same forward and backwards.
I know you'll get the answer, I know you'll see.
It's a word that is important to you and me.
What word am I?
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