In an examination, 400 students appeared. If 2/3 of the boys and all 130 girls were passed in examination, then find how many boys failed in examination?
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Given
Number of students appeared exams =400
(2/3) of total boys and all 130 girls passed in the examination
Hence,
Number of total boys =400−130
=270
Number of boys passed =(2/3) of 270
=(2/3)×270
=180
So, number of boys failed =270−180
=90
Hence, 90 boys failed in an examination
Answered by
0
Total number of students = 400
Number of girls = 130
Number of boys = 400 - 130 = 270
Number of boys who passed = 2/3 x 270 = 180
Number of boys of failed = 270 - 180 = 90
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