After repairing a scooter runs at a speed of 54 km/h and before repairing runs at speed of 48 km/h. It covers a certain distance in 6 hours after repairing. How much time will it take to cover the same distance before repairing?

Improve the bracketed part of the sentence.
(After he arrived) from office, he goes to gym.

A starts from a point at a speed of 30 metre/second. After 3 seconds, B starts chasing A from the same point with a speed of 50 metre/second. What will be the total distance (in metres) travelled by A and B before A is caught by B?

In the following items, each passage consists of six sentences. The first and the sixth sentence are given in the beginning as S1 and S6. The middle four sentences in each have been removed and jumbled up. These are labeled P, Q, R and S. You are required to find out the proper sequence of the four sentences and mark your response accordingly on the Answer Sheet.

S1 :One of the many young scientists who chose to throw in their lot with Rutherford was an Oxford physical chemist, Frederick Soddy.
S6:We now know that Gamma rays are a particularly fierce form of X-rays.
P:His association with Rutherford lasted only two years, but that was long enough to change the whole face of physics.
Q:He was just 23.
R:They found that thorium changed into a new element, thorium X, and in the process gave off what was apparently a gas and at the same time a third type of ray, which they named after the Greek letter ‘Gamma’.
S:When he teamed up with Rutherford,they investigated thorium which, as Marie Curie had shown, was radioactive.

The proper sequence should be 

In the following items, each passage consists of six sentences. The first and the sixth sentence are given in the beginning as S1 and S6. The middle four sentences in each have been removed and jumbled up. These are labeled P, Q, R and S. You are required to find out the proper sequence of the four sentences and mark your response accordingly on the Answer Sheet.

S1 :At the age of eighteen Gandhi went to college, but remained for only part of the year.
S6:This was against his religion, and most of his relatives were against his going.
P:Soonafter this, he was advised to go to England to study tobe a lawyer.
Q:Studies did not interest him and he did not do well.
R:It was difficult for him to leave India and go to a foreign land where he would have to eat and drink with foreigners.
S:This would not be easy.

The proper sequence should be 

In the following items, each passage consists of six sentences. The first and the sixth sentence are given in the beginning as S1 and S6. The middle four sentences in each have been removed and jumbled up. These are labeled P, Q, R and S. You are required to find out the proper sequence of the four sentences and mark your response accordingly on the Answer Sheet.

S1 :Jumbo, the famous 3.3 metre elephant was born in Africa over a hundred years ago.
S6:Before his death in September 1882, he had been seen by over 20 million Americans.
P:After disembarkation in New York, he was taken in a procession to the place where he was to be kept.
Q:Another admirer was the famous American showman Barnum who bought it for a huge sum in February 1882.
R:Transported from his native land to London Zoo, he became a favourite of Queen Victoria.
S:He made his transatlantic voyage aboard SS Assyrian Monarch.

The proper sequence should be 

Ratio of present ages of P and Q is 9 : 4. The difference between their ages is 20 years. What will be the sum (in years) of their ages after 10 years?

The ratio of the present ages of Aman and Ankit is 2 : 1 and the sum of their present ages is 72 years. What will be the Aman's age (in years) after 6 years?