Question

Exercise 20
1. A huge building is to be decorated during Diwali. The building has 5 floors and each floor has
256 rooms. Each room has 3 windows and 2 doors. 5 diyas are to be lit in each window and 2
divas in each door. How many divas in all will be required?​

Answer 1

24320

according to the question no of doors =2560

therefore divas needed for the door=2560*2=5120

no of windows =3840

therefore no of divas needed for windows = 3840*5=19200

therefore total no of divas needed=5120+19200=24320