6 groups have 14 students each. If all the students are rearranged in groups of 4, how many groups are then formed?
A
56
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B
21
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C
24
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D
84
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Solution
The correct option is B 21 Number of groups = 6
Number of students in each group = 14
Steps: Total number of students
= Number of students in each group × Number of groups
= 14 × 6
= 84
Solve 14 × 6 using the area model.
As per the given condition, the total number of students are arranged in groups of 4.
Steps: Number of students in each group
= Total number of students ÷ Number of groups
= 84 ÷ 4
= 21
Option C is correct.