Answer - using models:
Tuesday, October 04, 2011
P4 Math Question - Equal Stage
In a class, 1/4 of the students are boys. After 3/5 of the boys and 2/5 of the girls left the class, there were 154 students that remained. Find the total number of students in the class at first.
Answer - using models:
Make the units the same size:
Number of remaining units = 11:
Answer - using models:
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