Read the Following Passage carefully and give the answer.

 To write well you have to be able to write clearly and logically, and you cannot do this unless you can think clearly and logically. If you cannot do this, yet you should train yourself to do it by taking particular problem and following them thought, point by point to a solution, without leaving anything out and without avoiding and difficulties that you meet.

At first you may find clear, step-by-step through very difficult. You may find that your mind is not able to concentrate. Several unconnected ideas may occur together. But Practice will improve your ability to concentrate on a single idea and think about it clearly and logically. In order to increase your vocabulary and to improve your style, you should read widely. Use a good dictionary to help you find the exact meaning and correct usage of words.

Always remember that regular and frequent practice is necessary if you want to learn to write well. It is no good waiting until you have an inspiration before you write. Even with the most famous writers, inspiration is rare. Some one said that writing is ninety-nine percent hard work and one percent inspiration, so the sooner you get into the habit of disciplining your self to write, the better.

To write well a person must train himself in-

Direction: Bar graph given below shows number of pens and pencils sold by five different shops. Read the data carefully and answer the questions.

A man invested Rs. 9600 in two equal parts on SI for T years and (T + 2) years at the rates of 12.5% p.a and 16% p.a respectively. If the man got a total interest of Rs. 4272, then find the value of T.

Which electromagnetic radiation is used for satellite communication? 

The basic structural and functional unit of living organisms is-

In the following question, by using which mathematical operators will the expression become correct?
30 ? 6 ? 4 ? 5 ? 4

Statement: 

Is pen mightier than a sword?

Arguments: 

I. Yes, writers influence the thinking of the people. 

II. No, with the help of physical force one can conquer all.