2. A workshop has two production teams, and the number of class one is 60% of that of class two. If 14 people are transferred from the second team to the first team, the number of people in the second team is 50% of that in the first team. How many people are there in this workshop?
3. There are *** 100 domestic pigeons in Xiaofang's family, of which more than 50% 15% are domestic pigeons. How many domestic pigeons and flower pigeons are there in Xiaofang's family?
Zhongyang supermarket sent a batch of rice. All 40% was sold on the first day, the remaining 50% on the second day, and 3 1 less on the third day than on the first day. At this time, there is still 150 Jin of rice left. How many Jin of rice did Zhongyang Supermarket send?
Xiaoming goes home for dinner at 6 o'clock every day. One day, his mother waited from 6 o'clock until the hour hand and the minute hand were at right angles for the second time. When did Xiaoming go home?
6. There is a watch that loses 4 minutes every hour and sets the time at 8 am. So when this watch points to noon 12, what is the actual time?
7. China mathematician Xu was born at the age of 22 1, 1607. He completed the translation of the first six volumes of the original work. 1629 presided over the compilation of the new calendar, but the unfinished work died. 1634 was finally completed by Li Tianjing. Many of 1607 are big?
Answer: 1.
2.60%=53 50%=2 1 ① 1÷[(209-24 1× 10) ÷( 12- 10)] ﹦ 1÷[(209﹣ 125)÷2] ( 1 ÷ 60 1 ② (1210) ÷ (209241x10))
3.15% × 2 = 30% =1033x16 = 48 (only) pigeons: (100-48) ÷ (1+65433)
4. 150 ÷ { 1 ﹣ [52 ﹢ ( 152) × 2 1 × ( 1 ﹣ 365438+)
5.(5× 6+ 15) ÷ (1 2512305) = 45 ÷121=165438.
6.60460? → 14 15 ( 14 15- 1) ×60×4+ 12:00 = 14 1×60×4+ 12:00 = 12:78 16
7.1629 ~16341500 ~1600 22× 69 =1518 (year)15/kloc. 10 (year) 22×7 1= 1562 (year) 1562+69= 1633 (year) √√ 22× 72 =/kloc-0.