Math

There is a three digit number

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There is a three digit number. The second digit is four times as big as the third digit, while the first digit is three less than the second digit. What is the number? Check the answer here.

In a lake there is a patch of lily pads

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In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half the lake? Check the answer here.

What number do you get

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What number do you get when you multiply all of the numbers on a telephone’s number pad? Check the answer here.