420 total students
1/4 in 1st grade: 420(1/4) = 105
20% in 2nd grade: 420(.20) = 84
115 students in 3rd grade
# students in kindergarten = 420 - (105+84+115) = 116 students in kindergarten.
Harley S.
asked • 01/06/16How many are in kindergarten?
There are 420 students in kindergarten through third grade. If 1/4 of the students are in first grade, 20% are in second grade, and 115 students in third grade, how many students are in kindergarten?
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