It took Xiaoming 18 seconds to run 100 meters and Xiaogang 24 seconds to run 150 meters. Who runs fast? process

It took Xiaoming 18 seconds to run 100 meters and Xiaogang 24 seconds to run 150 meters. Who runs fast? process

Velocity formula v = s / T (V is velocity, s is distance, t is time)
Xiaoming's speed: 100 / 18 = 5.6 (M / s)
Speed of Xiaogang: 150 / 24 = 6.25 (M / s)
5.6(m/s)

Xiaoming and Xiaogang have two 100 meter sprint competitions. The first time, when Xiaogang runs 100 meters, Xiaoming is still 20 meters away from the end. The second time, Xiaogang is starting
Step back 20 meters and start at the same time as Xiao Ming. Who will get to the destination first?

Xiaogang Xiaogang is faster than him in 100 meters. He runs 80 meters. Xiaogang runs 100 meters. If Xiaogang retreats 20 meters, he can still catch up with him at 80 meters and then surpass him

Xiaoming, Xiaogang and Xiaolong compete in 100m walking race. When Xiaoming reaches the finish line, Xiaogang still has 4m and Xiaolong has 10m. If the speed remains the same, Xiaogang will arrive at the finish line
How much is Bruce Lee away from the end

96:90=100:X
X=9000/96=93.85
Bruce Lee from the end: 100-93.75 = 6.25 (meters)

Although the whip is not as long as a horse's belly, it is not as good as a horse's belly
Writing idioms according to Ancient Poems
1. Although the whip is not as long as a horse's belly
2. To feel and hear the morning bell makes people think deeply
3. There is no courage to see what is right. () the Analects of Confucius is one for politics
4. I have the name of Qing, but not the fact. () Meng Jiao's "after the imperial examination"

Beyond reach
thought-provoking
do boldly what is righteous
in name only

1、5、14、30、55、91…… What is the ninth number in this column?
Why?

Question: 1, 5, 14, 30, 55, 91 What is the ninth number in this column?
Answer: 295
Because: each number takes 1, 4, 9, 16, 25 Increase by degrees

5x = 25 times 1 / 9 (solving the equation)
5 out of 9 = 25 times 1 out of 9

5x=25*1/9
5x=25/9
x=5/9

Through this novel, I understand the meaning of life

Through this novel, I understand the meaning of life
There is no subject in the original sentence

How many pounds is 374 grams? How is it calculated?
It's best to write the formula for me,

1 lb = 16 oz = 0.4536 kg = 453.6 G
347 g = 347 g △ 453.6 g / lb = 0.76499118165784832451499118165785 LB

Simple calculation, 3 / 11 / 13 / 5 + 8 / 11 * 3 / 13 5.4 * 9 / 10 + 3.6 / 10 / 9 + 0.9
The first question is 3 / 11 divided by 13 / 5 plus 8 / 11 multiplied by 3 / 13. The second question is 5.4 times 9 / 10 plus 3.6 divided by 10 / 9 plus 0.9

1、(3/11)*(5/13)+(8/11)*(3/13)=（15+24）/(11*13)=39/(11*13)=3/11
2、5.4*0.9+3.6*0.9+0.9=(5.4+3.6+1)*0.9=9

Xiao Ming did 10 math problems and got 58 points in total, including 8 points for one right problem and 3 points for one wrong problem?

Full Score: 10 * 8 = 80 (points)
One wrong question is equivalent to deduction of 8 + 3 = 11
(80-58) / 11 = 2
A: he did 8 questions right and 2 questions wrong
(Mathematical Olympiad of grade five)