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Tree planting activities were held in a school tree planting day. 336 trees were planted in Grade 5. The number of trees planted in Grade 6 was 8 times more than that in Grade 5. How many trees were planted in Grade 6
336×（1+1/8）
=336×9/8
=378 trees
A: 378 trees were planted in grade six
On tree planting day, 450 trees were planted in the school, 100 in the fourth grade, 3 in the fifth and sixth grade, and 4 in the sixth grade
450-100 = 350 3 + 4 = 7 350 divided by 7 = 50 50 × 4 = 200
In the tree planting day, students carry out tree planting activities. 45 trees are planted by students in Grade 6, 5 / 3 of those in grade 4, and 4 / 3 of those in Grade 5. How many trees are planted by students in Grade 5?
It's simple:
1.45 * 5 / 3 = 27 (trees)
Thinking: the sixth grade is unit one. Think by the number of shares, the 45 trees in the sixth grade are divided into 5 on average, of which 3 are 27
You can use the latter information to check: grade five = 27 divided by 4 / 3 = 36 (trees) 36 * 4 / 3 = 27 (trees)
I'm in sixth grade. I can't be wrong
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- 1. A class is going to plant trees on tree planting day If each student plants 14 saplings, the remaining 20 saplings will not be planted. If each student plants 15 saplings, an additional 11 saplings will be prepared. How many students are there in this class?
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- 9. If the seventh grade students are allowed to do it alone, it will take 7.5 hours to complete. If the eighth grade students are allowed to do it alone, it will take five hours How much time does it take to finish the rest of the work if the seventh and eighth grade work together for one hour, and then the eighth grade finish the rest of the work alone? (solve the equation with one variable once)
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- 15. What kind of trees are planted on tree planting day
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