1 1÷( 1 1+4)× 100%≈73.3%

(2) 2,000 kilograms of rice is processed into rice in the rice processing plant, and * * * grinds out 1600 kilograms of rice to obtain rice output.

1600÷2000× 100%=80%

(3) Planting trees in the forest farm in spring, 24,570 plants survived and 630 plants died, so as to seek the survival rate.

24570÷(24570+630)× 100%=97.5%

(4) The employees of the furniture factory 1250 were absent from work one day 15 and asked for attendance.

( 1250- 15)÷ 1250× 100%=98.8%

(5) Master Wang produced a batch of parts, 485 of which passed the inspection, and 5 failed/kloc-0, so as to find the qualified rate of this batch of new products.

485÷(485+ 15)× 100%=97%

(6) A batch of corn seeds were used for germination test. Results 192 seeds germinated and 8 seeds did not germinate. Find the germination rate of these seeds.

192÷( 192+8)× 100%=96%

(7) Class Six (1) today, 48 people came to class, and two people took personal leave to ask for the attendance of Class Six (1).

48÷(48+2)× 100%=96%

(8) There are 50 students in Class 6 (1), and 5 students failed in the mid-term exam, so the passing rate of this class can be calculated.

(50-5)÷50× 100%=90%

(9) In a shooting practice, Xiao Wang fired 200 rounds and missed 50 rounds. What's the hit rate?

(200-50)÷200× 100%=75%

(10) PLA soldiers conducted live-fire shooting training, with 50 people each firing 6 rounds. As a result, * * * hit 256 rounds, seeking the hit rate.

256÷(50×6)× 100%≈85.3%

(1 1) The original cost of a product in a factory was 96 yuan, but after technological innovation, the cost of each product was reduced to 84 yuan, by what percentage?

(96-84)÷96= 12.5%

(12) The recorder factory planned to produce 3,600 recorders in the third quarter, and actually produced 4,500. What percentage did the actual output exceed the plan?

(4500-3600)÷3600=25%

(13) Due to the strengthening of enterprise management, the number of workers per shift has been reduced from 800 to 650. Now the number of workers in each class has decreased by several percent.

(800-650)÷800= 18.75%

(14) It takes 10 days for Team A to do a project alone, and 12 days for Team B to do it alone. How much more efficient is Team A than Team B?

( 1/ 10， 1/02)÷ 1/02 = 20%

(15) Processing a kind of parts, now processing 1500 pieces every day, 300 pieces more than in the past. What percentage of parts are processed every day?

300÷( 1500-300)=25%

(16) A primary school plans to use 250 tons of water this year, saving 30 tons compared with last year. What is the percentage of planned water use this year?

250÷(250+30)≈89.3%

(17) Xiao Mingjia 10 used 80 kwh of electricity, saving 20 kwh compared with last month. What percentage was saved?

20÷(80+20)=20%

(18) Xiangqun Chain Store 10 had a turnover of 345,000 yuan, an increase of 45,000 yuan compared with September. What percentage is the turnover in October higher than that in September?

4.5÷(34.5+4.5)≈ 1 1.5%

(19) Guangming shoe factory planned to produce 24,000 pairs of shoes in June, but actually produced 25,200 pairs. What percentage has the output increased?

(25200-24000)÷24000=5%

(20) A sugar factory produced 552 tons of sugar in July, 72 tons more than planned. What is the percentage of overproduction?

72÷(552-72)= 15%

(2 1) A production team produced 1600 pieces, and 4 pieces were unqualified after acceptance. How to find the qualified rate of products?

( 1600-4)÷ 1600× 100%=99.75%

(22) xishan village has accumulated 820,000 tons of chemical fertilizers this year, which is10.4 million tons more than originally planned. What percentage of the plan has been completed?

82(82- 14)= 4 1, a total of 34.

(23) A chemical plant produced 1.28 tons of chemical fertilizer in March, 320 tons less than planned. What percentage of the plan was completed?

1280÷( 1280+320)=80%

(24) The school canteen burned 7.5 tons of coal in May, saving 1.5 tons compared with April. Compared with April, what percentage of coal was saved in May?

1.5÷(7.5+ 1.5)≈ 16.7%

(25) The time for workers to process a machine part is reduced from the original 15 minutes to 10 minutes. How many percent of working hours have been reduced?

( 15- 10)÷ 15≈33.3%

What percentage has the work efficiency improved?

( 1/ 10， 1/05)÷ 1/05 = 50%

(26) A factory expansion plan invested 5 million yuan, saving 450,000 yuan. What percentage of investment was saved?

45÷500=9%

(27) The cost of a TV set is now in 550 yuan, which is 100 yuan lower than the original. What percentage is the cost reduced?

100÷(550+ 100)≈ 15.4%

(28) A steel mill produced 2,460 tons of steel in August, 60 tons more than planned, by what percentage?

60÷(2460-60)=2.5%

(29) A factory planned to produce 65,438+0,820 machine parts in the first quarter, but actually produced 2,320 machine parts. What percentage has the output increased?

(2320- 1820)÷ 1820 = 965438+25 in 0。

(30) It takes 8 days for A to do a job alone, which is 2 days less than B. How much faster is A's work efficiency than B?

8+2= 10

(0- 10 of 65438+8) 0)÷ 10/0 of 0 = 25%.

(3 1) Due to the adoption of advanced technology, a project only used144,000 yuan, 36,000 yuan less than the original plan, and what percentage was saved?

3.6÷( 14.4+3.6)=20%

(32) After the equipment of Hongxing Machinery Factory was updated, it produced 2,400 parts every day, 400 more than originally planned. How much more than originally planned?

400÷(2400-400)=20%

(33) After streamlining, the staff of a public institution 167, which is 68 less than the original establishment. What percentage?

68÷( 167+68)≈28.9%

A color TV set now costs 2,400 yuan, a few percentage points lower than the original price reduction in 350 yuan.

350÷(2400+350)≈ 12.7%

It took Master Wang eight days to produce a machine part, but he finished it three days ahead of schedule. What percentage has the work efficiency improved?

8-3=5

(65438 of 5+0-65438 of 8+0) ÷ 65438 of 8+0 = 60%

(36) For the same road section, Party A needs 20 minutes and Party B needs 18 minutes. How much slower is Party A than Party B?

( 1- 1 of 18) 1 of 18 = 10%