Primary school mathematics problem solving.. a total of 6 problems to step, thank you o (∩)_ ∩)o 1）240 *（3/4 45%） 2) 9/14 * 25% 3) 5/14 * 1/4 4）1/2X - 35%x= 12 5) 34% divided by 4x = 1 / 2 6) 80%x - 1/2x = 1 Give me the steps~~~~~~~~~~~~~

Primary school mathematics problem solving.. a total of 6 problems to step, thank you o (∩)_ ∩)o 1）240 *（3/4 45%） 2) 9/14 * 25% 3) 5/14 * 1/4 4）1/2X - 35%x= 12 5) 34% divided by 4x = 1 / 2 6) 80%x - 1/2x = 1 Give me the steps~~~~~~~~~~~~~

1） 240 *（3/4 45%）=240*3/4*45/100=180*9/20=81
2) 9/14 * 25%=9/14*1/4=9/56
3) 5/14 * 1/4=5/56
4）1/2X - 35%x= 12
0.5X-0.35X=12
0.15X=12
X=12/0.15
X=80
5) 34% divided by 4x = 1 / 2
0.34=1/2*4X
0.34=2X
X=0.34/2=0.17
6) 80%x - 1/2x = 1
0.8X-0.5X=1
0.3X=1
X=10/3

Wrong or right judgment
[1] Taotao has 12 shots and Dongdong has 8. Taotao's shooting percentage is high
[2] The original price of a coat is 200 yuan. After 75% discount, the price is 150 yuan
[3] The total price of all the school supplies sold out by grandfather Zhang is 500 yuan, of which 100 yuan is the profit, and the profit margin is 20%
[4] The science and technology team did germination experiment. There were 50 seeds germinated and 4 seeds did not germinate. The germination rate of these seeds was 92%
[5] If the cost of a product is reduced by 10 yuan, the cost will be reduced by 5%. If the cost is further reduced by 5%, the cost will be reduced by 10 yuan
[6] The concentration of a normal saline is 7%, which means that salt accounts for 7% of the saline

Wrong
yes
wrong
wrong
wrong
yes
I hope my answer can help you

1. Two cars start from a at the same time and drive along a highway to B. car a travels 5 kilometers more per hour than car B. car a arrives at C half an hour earlier than car B. when car B arrives at C, car a just arrives at B. It is known that the highway from C to B is 30 kilometers long. How many kilometers does car B travel per hour? How many kilometers is the distance between two places?
2. My father rented a fruit warehouse at the rent of 600 yuan per month to store 3 tons of fruits. According to the Convention, these fruits need to be sold for 2 months. As the sales price was reduced, the fruits were sold out in one month. As the rent was saved, the settlement was made, and the extra 30 yuan was earned. How much yuan was the decrease in sales per kilogram of fruits compared with the plan?
3. For a project, it takes 10 days for Party A to complete it alone, 15 days for Party B, and 20 days for Party C. The three teams work together, and Party A withdraws in the middle of the project. As a result, it takes 6 days in total. How many days did party a actually work?
4. A project is completed in 12 days by Party A alone, and 1 / 3 of the project can be completed in 5 days by Party B. now Party A and Party B work together for 2 days, and the rest is done by Party A alone. How many days will it take?
5. Someone bought 330kg rice with 744 yuan. He didn't want to make money. He just wanted to eat 20kg rice for nothing. How much should his selling price be per kg?
6. Party A and Party B travel from both places at the same time. Party A travels 15 kilometers per hour by bicycle and Party B 45 kilometers per hour by motorcycle. Party A meets Party B 36 kilometers away from the place of departure. How many kilometers are there between the two places?
Explain why, be more specific and give extra points if you answer well

1. When B travels for half an hour, a just travels 30 kilometers, so a's speed is 30 * 2 = 60 kilometers, and B's speed is 55 kilometers. At the end of the whole journey, a just travels 30 kilometers more than B, and 5 kilometers more per hour, so a total of 30 / 5 = 6 hours, so the distance between the two places is 60 * 6 = 360 kilometers