How Much Power Is Dissipated When All The Three Bulbs Glow Together?

How Much Power Is Dissipated When All The Three Bulbs Glow Together? From the given circuit diagram, it is clear that bulbs B1, B2 and B3 are connected in parallel combination. Therefore, power of 13.5 W is dissipated in the circuit when all three bulbs glow together. How much power is dissipated by each bulb?