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Question
School is holding a writing contest for students from 1st grade to 5th grade. 3 students should participate from each grade. If each student brings two pens, two pencils, one eraser, and one sharpener. How many implements will we see at the competition?
School is holding a writing contest for students from 1st grade to 5th grade. 3 students should participate from each grade. If each student brings two pens, two pencils, one eraser, and one sharpener. How many implements will we see at the competition?
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Solution
The correct option is B 120
Number of participating grades = 5
Number of students from each grade = 3
Number of implements per student = 2+2+1+1=6
So, the total number of implements = 5×3×6
Using associative property of multiplication:
5×3×6=(5×3)×6=15×6=120
Hence, we see 120 implements in the test.
Number of participating grades = 5
Number of students from each grade = 3
Number of implements per student = 2+2+1+1=6
So, the total number of implements = 5×3×6
Using associative property of multiplication:
5×3×6=(5×3)×6=15×6=120
Hence, we see 120 implements in the test.
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