It takes six hours for a bus to go from place a to place B, and eight hours for a truck to go from place a to place B. when they meet, the truck runs 240 kilometers

It takes six hours for a bus to go from place a to place B, and eight hours for a truck to go from place a to place B. when they meet, the truck runs 240 kilometers

It takes 6 hours for bus to go from a to B and 8 hours for truck to go from B to a
When the time is the same, the distance ratio is 8:6 = 4:3
Distance between a and B = 240 * (4 + 3) / 3 = 560
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4 out of 7 is 23 and 12 out of 13 + 1 out of 16 × 7 + 1 out of 7 × 4 out of 13 (calculated by simple method)
4 out of 7 is 23 and 12 out of 13 + 1 out of 16 × 7 + 1 out of 7 × 4 out of 13 (calculated by simple method)
= 4/7 x ( 312/13) + 16/7 + 4/7x13
= 4x3123 / (7x 13 ) + 16/7
= 12700 /( 7 x 13)
= 12700 / 91
A mathematical problem of "24 o'clock"
Use red peach 3, spade 4, square 6 and plum K to carry out mixed operation of addition, subtraction, multiplication, division and power. The result of operation is 24 or - 24. The red card represents positive number and the black card is negative number. (k represents 13). How to group?
6 ÷ (-4) ×(- 13-3)=24
(- 4) * (- 13) - 3 * 6 = 24?
It takes six hours for a bus to go from place a to place B, and eight hours for a train to get home from a different place. The two trains set out from two places at the same time and drove each other. When they met, the freight car traveled 240 kilometers. How many kilometers are there between the two places?
It takes six hours for a bus to go from place a to place B, then 1 / 6 of the whole journey for a bus per hour, and it takes eight hours for a truck to go from place B to place a, then 1 / 8 of the whole journey for a truck per hour. The two cars start from two places at the same time and drive opposite each other, then the time required for meeting is: 1 ÷ (1 / 6 + 1 / 8) = 24 / 7 (hours)
4 * 23 of 7 and 12 of 13 + 1 of 4 * 13 of 7 + 1 of 16 * 7
4 * 23 of 7 and 12 of 13 + 1 of 4 * 13 of 7 + 1 of 16 * 7
=4 of 7 * 23 and 12 of 13 + 4 of 7 * 13 + 4 of 4 * 7
=4 out of 7 * (12 out of 23 + 1 out of 13 + 4)
=4 / 7 * 28
=16
-3,4,-5,5
The result is 24
Each number is used once
(-3)*(-5)+4+5=24
From place a to place B, it takes 8 hours for passenger cars and 10 hours for freight cars. The two cars travel from two places at the same time. How many hours do they meet each other? If the passenger line is 200 km, the freight line is 200 km
Encounter time = 1 ÷ (1 / 8 + 1 / 10) = 40 / 9 (hours)
If the bus runs 200 km,
Truck travel: 200 △ 1 / 8 × (1 / 10) = 160 km
Calculate - 29 and 23 / 24 times (- 12)
-29 and 23 / 24 times (- 12)
=(-30+1/24)×（-12）
= -30×（-12）+1/24×（-12）
=360-1/2
=359.5
Four numbers 3,4, - 6,10 are given, which are connected by operations such as +, -, ×, △ and square brackets, so that the result is 24, and three different operation formulas are written. What if the four numbers are 3, - 5,7, - 13?
3*[4+(-6)+10]=24
4-10*(-6)/3=24
10-4-3*(-6)=24
[(-5)*(-13)+7]/3=24
[4+(-6)+10]*3
Inverted SA
1.[(-6)+4+10]×3=24
2.4-[(-6)/3×10]=24
3.（10-4）-3×（-6）
[(-5)×(-13)+7]/3 = 24
It takes 6 hours for passenger cars to go from place a to place B, and 8 hours for freight cars to go from place a to place a. the two cars set out at the same time. When they meet, the freight cars travel 240 km to find the total distance
One sixth an hour for passenger cars and one eighth an hour for freight cars
The ratio of speed is 1 / 6:1 / 8 = 4:3
At the same time, the distance ratio is 4:3, so when the trucks meet, they take 3 / (3 + 4) = 3 / 7, that is three seventh
240 / (3 / 7) = 560 is the total distance
The speed of the bus is 1 / 6
The speed of the train is one eighth
1 / 6 + 1 / 8 is speed and speed
Speed and * meeting time = distance between two places
It's about meeting
We talked about it in math class
It takes six hours for a bus to go from place a to place B, and eight hours for a truck to go from place B to place a.
When the time ratio is 3:6, the distance ratio is 4:8
Distance between a and B = 240 * (4 + 3) / 3 = 560
From "it takes 6 hours for passenger cars to go from place a to place B, and 8 hours for freight cars to go from place a to place a", it can be seen that passenger cars: freight cars = 3:4
This ratio can be regarded as 3 parts for passenger cars and 4 parts for freight cars.
It can be seen from the "240 km freight car travel when meeting" that each piece is 240 △ 4 = 60 (km)
60 × 8 = 480 (km) is the total distance.
I don't know if it's right. It's different from other people's answers? You can check it yourself! Hope to choose my answer! Thank you!... expand
From "it takes 6 hours for passenger cars to go from place a to place B, and 8 hours for freight cars to go from place a to place a", it can be seen that passenger cars: freight cars = 3:4
This ratio can be regarded as 3 parts for passenger cars and 4 parts for freight cars.
It can be seen from the "240 km freight car travel when meeting" that each piece is 240 △ 4 = 60 (km)
60 × 8 = 480 (km) is the total distance.
I don't know if it's right. It's different from other people's answers? You can check it yourself! Hope to choose my answer! Thank you