Question

જગલની આગ અને તેની સહાયતી​

Answer 1

Explanation:

Let their income be 4x and 3x.

Let their expenditure be 3y and 2y

We know that

Income−Exp=Saving

So,

4x−3y=600

3x−2y=600

On solving

8x−6y=1200

−9x+6y=1800

Hence on adding these equations,

x=600

y=600

Income of A=4×600=Rs2400

Answer 2

Explanation:

Answer:Electric bell is based on the principle of electromagnets. When switch is pressed, electromagnet is activated and the hammer moves and hits