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Question 29
Class A has students twice that of class B. After adding 20 students to class A and 30 students to class B, the total number of students in both the classes is 140. What is the number of students in class A in the beginning?
Solution
Given students of class A= $$2 \times student of class B$$
and Student of class A +20 + student of class B+ 30 = 140
orĀ Student of class A + student of class B = 90
orĀ $$2 \times student of class B$$ +Ā student of class B = 90
now after solving we will getĀ student of class B = 30
andĀ student of class A = 60
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