1. Group A and group B made 144 animal specimens within 6 hours. Group a made 14 specimens per hour. How many specimens per hour did group B make? 2. There are 70 meters of cloth, which can be used to cut 20 sets of adult clothes and 12 sets of children's clothes. Each set of clothes uses 1.6 meters of cloth. How many meters of cloth does each set of adult clothes use?

1. Set B to make x pieces per hour
6（X+14）=144
X=144/6-14
=10 pieces
2. X meters for each set of adult clothes
12*1.6+20X=70
X=（70-12*1.6）/20
=50.8/20
=2.54 (m)

In order to stimulate domestic demand, auto purchase tax subsidy activities across the country officially started in 2009. A dealer sold 960 manual and automatic cars of a certain brand in the month before the policy was issued, and 1228 cars of these two models were sold in the first month after the policy was issued. The sales of manual and automatic cars increased by 30% and 25% respectively compared with the month before the policy was issued %(1) in the month before the policy was issued, how many manual and automatic cars were sold? (2) If the price of a manual car is 80000 yuan, and that of an automatic car is 90000 yuan. According to the subsidy policy, the government subsidizes the users who buy cars at 5% of the price of each car. In the first month after the introduction of the policy, how much or less 10000 yuan has the government subsidized the 1228 car users?

(1) According to the meaning of the question, we get x + y = 960 (1 + 30%) x + (1 + 25%) y = 1228, and the solution is x = 560y = 400. A: before the policy, we sell 560 and 400 manual and automatic cars respectively. (2) the subsidy for manual cars is 560 × (1 + 30%) × 8 × 5% = 2912 thousand yuan ）A: in the first month after the introduction of the policy, the government subsidized a total of 5.162 million yuan to 1228 auto users

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