Find the four-digit number in which the first digit is one-fourth of the last digit, the second digit is 6 times the first digit, and the third digit is the second digit plus 3.
How can you give someone $83 using exactly 7 bills, without using any one dollar bills?
Give them, 1 fifty dollar bill, 1 twenty dollar bill, 1 five dollar bill and 4 two dollar bills.
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?
The patch doubles in size every day and so on the 47th day the patch will be half the size it is on the 48th day