There are two class rooms
A and B. If 10 students are sent from A to B,
the number of students in each room becomes
the same. If 20 students are sent from B to A,
the number of students in A becomes double
the number of students in B. Find the number
of students in each class room.
Answers
❏ Question:-
There are two class roomsA and B. If 10 students are sent from A to B,the number of students in each room becomes the same. If 20 students are sent from B to A ,the number of students in A becomes double the number of students in B. Find the number of students in each class room.
❏ Solution:-
✦ Conditions:-
• If 10 students are sent from A to B,the number of students in each room becomes the same.
•If 20 students are sent from B to A ,the number of students in A becomes double the number of students in B.
✦ To Find:-
• Number of students in class room A.
• Number of students in class rroomB.
✦ Explanation:-
let,
the number of students in class room A is = X.
and,
the number of students in class room A is = Y.
Now, applying the 1'st condition,
Now, applying the 2'nd condition,
Now, Doing [(i)-(ii)] we get;
Now, putting the value Y=80 in (i),
we get,
∴ number of students in Class A = 100
∴ number of students in Class B = 80
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❏ Question:-
There are two class roomsA and B. If 10 students are sent from A to B,the number of students in each room becomes the same. If 20 students are sent from B to A ,the number of students in A becomes double the number of students in B. Find the number of students in each class room.
❏ Solution:-
✦ Conditions:-
• If 10 students are sent from A to B,the number of students in each room becomes the same.
•If 20 students are sent from B to A ,the number of students in A becomes double the number of students in B.
✦ To Find:-
• Number of students in class room A.
• Number of students in class rroomB.
✦ Explanation:-
let,
the number of students in class room A is = X.
and,
the number of students in class room A is = Y.
Now, applying the 1'st condition,
Now, applying the 2'nd condition,
Now, Doing [(i)-(ii)] we get;
Now, putting the value Y=80 in (i),
we get,
∴ number of students in Class A = 100
∴ number of students in Class B = 80
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