Interesting question 2: Two candles of equal length, the first can light for 4 hours, the second can light for 3 hours, at the same time light these two candles, after how many hours the length of the first one is twice the length of the second one?
Interesting question 3: Add 168 to a number to get the square of a positive integer, and add 100 to get the square of a positive integer. What is this number?
Interesting Question 4: A person walks for 5 hours, first along a flat road, then up a hill, and finally back the same way. If he walked 4 kilometers per hour on the flat road, 3 kilometers per hour up the hill, and 6 kilometers per hour down the hill, how many kilometers did he walk in 5 hours***?
Interesting question 5: Ms. Zhao's age has the following characteristics: (1) its third power is a four-digit number, and the fourth power is a six-digit number; (2) the four-digit and six-digit number of the digits is exactly 0-9 of the ten numbers. Q: How old is Ms. Zhao?
Interesting question 6: in the race track, there are A, B, C three horses, A in a minute can run two laps, B can run three laps, C can run four laps. Now the three horses are lined up side by side on the starting line, ready to start in the same direction. How many minutes will it take for the three horses to run side by side on the starting line again?
Interesting Question 7: There are four numbers, the sum of any three of them is 84, 88, 99, 110.
Interesting question 8: In the same plane, 1 circle divides the plane into 2 parts, and 2 circles divide the plane into at most 4 parts.... What is the maximum number of parts into which 10 circles can divide the plane?
Interesting question 9: A person walking from point M, advancing 20 meters to the right 15 degrees, and then advancing another 20 meters, and then to the right 15 degrees, ...... If he keeps walking like this, can he return to point M? If so, how many meters did he walk when he returned to point M?
Interesting question 10: two different coins tangent, which another circle around the other circle roll, and back to the starting point, the circle **** spin how many times?
Interesting Question 11: Can you cut a square into 6 squares?
Interesting Question 12: If two candles of equal lengths are lit at the same time, and the first candle lights for 4 hours and the second candle lights for 3 hours, how many hours will the length of the first candle be twice that of the second candle?
Interesting question 13: Add 168 to a number to get the square of a positive integer, and add 100 to get the square of a positive integer. What is this number?
Interesting Question 14: A person walks for 5 hours, first along a flat road, then up a hill, and finally back the same way. If he walks 4 kilometers per hour on the flat road, 3 kilometers per hour up the hill, and 6 kilometers per hour down the hill, how many kilometers did he walk in 5 hours***?
Interesting Question 15: Ms. Zhao's age has the following characteristics: (1) its third power is a four-digit number, and its fourth power is a six-digit number; (2) the digits of this four-digit number and this six-digit number are exactly the ten digits from 0-9
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