Question

The students of class IX decide to donate money to Prime Minister’s Corona Relief Fund. If 10 boys and 15 girls of Section A donated Rs.4000 and 15 boys and 20 girls of Section B donates Rs.6000. Represent the situation algebraically to find the money donated by each boy and girls of class IX * 1 point 10x + 15 y = 4000 ; 20x + 15y = 6000 10x + 15 y = 4000 ; 15 x + 20 y = 6000 25x + 35 y = 10000 25 x = 4000 ; 35 y = 6000​

Answer 1

x 0 50 100

y 100 50 0

Let the contribution of Yamini be x and that of Fatima be y.

According to problem, x+y=100 ...(1)

Now , putting the value x=0 in (1)

0+y=100

y=100

So, the solution is (0,100)

Putting the value x=50 in (1)

50+y=100

y=100–50

y=50

So, the solution is (50,50)

Putting the value x=100 in (1)

100+y=100

y=100–100

y=0

So, the solution is (100,0)