1/【2/3】/【3/4】/【4/5】/【5/6】/【6/7】/【7/8】

1/【2/3】/【3/4】/【4/5】/【5/6】/【6/7】/【7/8】

1/【2/3】/【3/4】/【4/5】/【5/6】/【6/7】/【7/8】
=1*3/2*4/3*5/4*6/5*7/6*8/7
=1/2*8
=4

0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9

8+7=24-9=15

For a rope, cut off half and one meter for the first time, and cut off the remaining half and one meter for the second time. How long is the rope originally

Set to x meters, then:
0.5（0.5X-1）-1=1
-->0.5（0.5X-1）=2
0.5X-1=4
0.5X=5
x=10
To put it simply: cut off the remaining half and one meter in the second time, and there is one meter left. That is to say, half of the rope before the second time is 1 + 1 = 2, and the rope before the second time is 4 meters. Cut off half and one meter in the first time, and the remaining is 4 meters. Push out half is 5 meters, so the total length is 10 meters

For a rope, cut off 3-5M for the first time and 3-5M for the second time. Which length?

Cut off the rope for the second time
So at most 1-3-5 = 2-5 for the first time
So the second time

A rope is 2 meters long. Half of it is used for the first time and half for the next day. How many meters are left?

2 × (1-1 / 2) = 1m
1-1 / 2 = 1 / 2m

There is a section of rope, the first time minus half of the total length is less than 5 cm, the second time minus the remaining half is more than 10 cm, the result is 15 cm

15 + 10 = 25
25*2=50
50-5=45
45*2=90
So this rope used to be 90 centimeters long

For a rope, it takes 12 meters for the first time, 25 meters for the second time, and 6 meters for the last time. How long is the rope? (how many meters do you want to calculate

(6 + 25) × 2 = 62m
62 + 12 = 74m
A: This rope used to be 74 meters long

Use a long rope to measure the depth of the well;

Well depth: (5 × 2 + 4 × 3) / (3-2) = 22m
Rope length: (22 + 5) × 2 = 54m

For a rope, three eighth of its total length is cut off for the first time, and the remaining one fifth is cut off for the second time. There are 24 meters left. How long is the rope

It's 48 meters
The total length is x M
There is x-3x / 8 - (x-3x / 8) / 5 = 24
The solution is x = 48

A rope, the first minus 38, the second minus the remaining 15, there are still 24 meters, how long is this rope?

A: This rope is 48 meters long