In the given puzzle the logic is

2 x 1 + 1 = 2 + 1 = 3

3 x 2 + 2 = 6 + 2 = 8

4 x 3 + 3 = 12 + 3 = 15

5 x 4 + 4 = 20 + 4 = 24

6 x 5 + 5 = 30 + 5 = 35

Similarly,

7 x 6 + 6 = 42 + 6 = 48

7 = 48.

Electrostatic precipitator is used to control Air pollution. An electrostatic precipitator is a filtration device that removes fine particles, like dust and smoke, from a flowing gas using the force of an induced electrostatic charge minimally impeding the flow of gases through the unit.

Comments are Non Executable statements in program & Explain program logic.

There is universal affection and respect for and loyalty to the Indian National Flag. As it is the symbol of our national pride it represents the hopes and aspiration of the people.

The Flag Code of India 2002 permits unrestricted display of the tricolour, consistent with the honour and dignity of the flag.

The Flag Code of India has been divided into three parts:-

1. General Description of the National Flag.

2. Display of the National Flag by members of public, private Organizations & educational institutions etc.

3. Display of National Flag by Central or State Governments and their organizations and agencies.

Abhinav Bindra is an Indian professional shooter who is the world and Olympic champion in the 10 m air rifle event.

The Shramjeevi Train is a daily superfast express train of Indian Railways, running between Rajgir, near Nalanda, Bihar, and New Delhi, the capital city of India. Previously it was running between Patna and New Delhi, later extended to Rajgir.

Afghan-India Friendship Dam is previously called as Salma Dam between India and Afghanistan on Hari river.