试题与答案

星期天,同学们去工厂参观,工人叔叔请同学们帮忙算一下, (1)有一批煤加工零件用

题型:解答题

题目:

星期天,同学们去工厂参观,工人叔叔请同学们帮忙算一下,

(1)有一批煤加工零件用,原计划每天烧0.3吨,可烧100天,实际每天多烧0.2吨,实际可烧多少天?

(2)工厂同时还在加工另一种零件,一个工人3天加工216个,照这样计算6个工人5天可以加工多少个零件?

答案:

(1)0.3×100÷(0.3+0.2)

=30÷0.5,

=60(天),

答:实际可烧60天;

(2)216÷3×6×5

=72×6×5,

=2160(个),

答:照这样计算6个工人5天可以加工2160个零件.

试题推荐
题型:填空题
根据短文内容,用方框中所给的单词填空。
called, between, although, spent, worth
     At the beginning of the new term, many university students in Guangzhou have gone back to campus
 (校园) with their pets.
     Now more and more college students in Guangzhou take pets to campus, __1__ the teachers do not
 encourage (鼓励) them to do so. Ming, a student of Guangzhou College of Arts, is __2__ " the snake
 (蛇)boy", as he keeps 10 pet snakes at a time. "Nine of them were from abroad, and I __3__  6,000
 yuan on all of them," said Ming." But I think it is __4__  the cost. I love them, especially when they move
 over rny fingers. It's really cool."
     "The students must keep a balance __5__  taking care of pets and their studies," said Mr.Zhang, a
 teacher of South China Normal University.
查看答案
微信公众账号搜索答案