2. The number A is less than the number B 16%, and the number B is 20% larger than the number C. Among the three numbers A, B and C, the smallest number is _ _ _ _ _ _ _ _ _.
3. At 6: 10 on the clock, the obtuse angle formed by the minute hand and the hour hand is _ _ _ _ _ _ _ _ _.
4. A true score, if multiplied by 3, the numerator is smaller than the denominator 16, if divided, the denominator is smaller than the numerator by 2, and this true score is _ _ _ _ _ _ _ _.
5. The weight of 1 1 plum is equal to the weight of two apples and 1 peach, and the weight of two plums and1apple is equal to the weight of1peach, so the weight of a peach is equal to the weight of _ _ _ _ _ _ _ _.
6. The sum of number A and number B is 16, and number A is _ _ _ _ _ _ _.
7. Among the paintings exhibited in the "June 1st" art exhibition, 14 is not in grade 6, 17 is not in grade 5, and 2 1 is exhibited in grade 5 and 6. Therefore, the paintings exhibited in other grades are _ _ _ _ _ _ _.
8.100g 15% saline water, put 8g of salt. In order to make the concentration of the solution reach 20%, then you have to add _ _ _ _ _ _ _ g of water.
9. The two factories A and B produce the same number of products. The quantity of genuine products in Factory A is three times that of defective products in Factory B, and the quantity of genuine products in Factory B is four times that of defective products in Factory A.. Then, the ratio of the number of genuine products produced by factory A and factory B is _ _ _ _ _ _ _.
2. Application questions: (9 points for each question, formula calculation is required, only the number of answers is given, but not given)
1. The quotient of dividing two numbers is 22, the remainder is 8, and the sum of dividend, divisor, quotient and remainder is 866. Q: How much is the dividend?
There were 407 contestants in the Singer's Grand Prix in February and June 1 Day. The number of female singers who did not win the prize accounted for the total number of female singers, 16 male singers did not win the prize, but the number of male singers who won the prize was the same. Q: How many male singers are there?
3.A goes from place A to place B, and B and C go from place B to place A. Three people start at the same time. A first meets B on the way, and then meets C in 15 minutes. A walks 70 meters per minute, B walks 60 meters per minute and C walks 50 meters per minute. Q: What is the distance between A and B?
4. A batch of military support materials can be transported in three days if they are transported by eight big trucks, and 75% of the total materials can be transported in eight days if they are transported by five small trucks. How many days can three big trucks and four small trucks carry?
5. The number of boys in three groups is the same. The number of boys in the first group is equal to the number of girls in the second group, and the number of boys in the third group is the sum of the three groups of boys. What percentage of boys are in the three groups?
6. When the two water inlet pipes A and B are opened at the same time, 40% of the pool can be filled in 4 hours, then the pipe A is opened for 5 hours respectively, and then the pipe B is opened for 7.4 hours respectively, before the pool can be filled. Q: If pipe B is opened separately, how long will it take to fill the pool?
7. Xiaoyu started from home by bike at 8 o'clock. Eight minutes later, his father rode a motorcycle and caught up with Xiao Yu, who was 4 kilometers away from home. At this time, his father rushed home immediately because of something, and then turned around and caught up with Xiao Yu, who was 8 kilometers away from home for the second time. Q: When did his father catch up with Xiao Yu for the second time?
8. The number of people in Workshop A is less than that in Workshop C, and the number of people in Workshop C is 25% more than that in Workshop B, which is less than the sum of the number of people in Workshop A and Workshop B. How many people are there in the three workshops?
9. If a store buys a batch of goods in 480 yuan and sells them all at the price of each piece in 6 yuan, it can make a profit of 25%. In fact, some goods can only be sold at a reduced price per piece in 5 yuan due to quality problems, so the real profit is 20%. How many of these goods are qualified products at 6 yuan price?
10. At 4: 00 a.m., Car A and Car B left relatively at the same time. They were expected to meet at 10 in the morning, but at 6: 30 in the morning, the B car stopped at the midway point C for some reason, and the A car continued to go 350 meters. After meeting at the point C, the B car immediately drove to the point A at the original speed of 60 kilometers per hour. Q: When does the B train arrive at the A location?