In a survey of 200 students of a school ,it was found that 120study mathematics,90study physics and 70study chemistry ,40study maths and physics,30study physics and chemistry,50study chemistry and maths and 20none of these subjects.find the number of student who study all three subjects.

Mahesh Rai

April 16, 2018, 12:07 a.m.

Answers!

Yadav Subba

April 23, 2018, 8:49 p.m.

Question ko battery churoni my yadav sibba timro answer done timi punishment nepali hoina.... ka ho timro garh🏠

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