Read the following information carefully and answer the questions given below.
Poonam, Qurashi, Risha, Sonika, Tanvi, Uma, Varun and Waseem are eight friends. Three of them play Hockey and Chess each and two of them play Golf. They all are of different heights. The shortest does not play Hockey and the tallest does not play Golf. Uma is taller than Poonam and Sonika, but shorter than Qurashi and Waseem. Tanvi, who does not play Hockey, is taller than Qurashi and is second tallest. Varun is shorter than Sonika, but only taller than Poonam. Waseem plays Chess with Sonika, and is fourth from the top. Varun does not play Hockey or Golf. Qurashi does not play Golf.

Which of the following groups of friends plays Hockey? 

Read the following information carefully and answer the questions given below.
Poonam, Qurashi, Risha, Sonika, Tanvi, Uma, Varun and Waseem are eight friends. Three of them play Hockey and Chess each and two of them play Golf. They all are of different heights. The shortest does not play Hockey and the tallest does not play Golf. Uma is taller than Poonam and Sonika, but shorter than Qurashi and Waseem. Tanvi, who does not play Hockey, is taller than Qurashi and is second tallest. Varun is shorter than Sonika, but only taller than Poonam. Waseem plays Chess with Sonika, and is fourth from the top. Varun does not play Hockey or Golf. Qurashi does not play Golf.

What is Uma's position from the top, when they are arranged in descending order of their heights? 

Read the following information carefully and answer the questions given below.
Poonam, Qurashi, Risha, Sonika, Tanvi, Uma, Varun and Waseem are eight friends. Three of them play Hockey and Chess each and two of them play Golf. They all are of different heights. The shortest does not play Hockey and the tallest does not play Golf. Uma is taller than Poonam and Sonika, but shorter than Qurashi and Waseem. Tanvi, who does not play Hockey, is taller than Qurashi and is second tallest. Varun is shorter than Sonika, but only taller than Poonam. Waseem plays Chess with Sonika, and is fourth from the top. Varun does not play Hockey or Golf. Qurashi does not play Golf.

Which of the following pairs of friends plays Golf? 

Read the following information carefully and answer the questions given below.
Poonam, Qurashi, Risha, Sonika, Tanvi, Uma, Varun and Waseem are eight friends. Three of them play Hockey and Chess each and two of them play Golf. They all are of different heights. The shortest does not play Hockey and the tallest does not play Golf. Uma is taller than Poonam and Sonika, but shorter than Qurashi and Waseem. Tanvi, who does not play Hockey, is taller than Qurashi and is second tallest. Varun is shorter than Sonika, but only taller than Poonam. Waseem plays Chess with Sonika, and is fourth from the top. Varun does not play Hockey or Golf. Qurashi does not play Golf.

Who is the shortest ? 

Read the following information carefully and answer the questions given below.
Poonam, Qurashi, Risha, Sonika, Tanvi, Uma, Varun and Waseem are eight friends. Three of them play Hockey and Chess each and two of them play Golf. They all are of different heights. The shortest does not play Hockey and the tallest does not play Golf. Uma is taller than Poonam and Sonika, but shorter than Qurashi and Waseem. Tanvi, who does not play Hockey, is taller than Qurashi and is second tallest. Varun is shorter than Sonika, but only taller than Poonam. Waseem plays Chess with Sonika, and is fourth from the top. Varun does not play Hockey or Golf. Qurashi does not play Golf.

Who is the tallest ?

A bag contains 3 white balls and 2 black balls. Another bag contains 2 white and 4 black balls. A bag and a ball are picked random. The probability that the ball will be white is:

40% of the employees in a factory are workers. All the remaining employees are executives. The annual income of each worker is Rs. 39000. The annual income of each executive is Rs. 42000. What is the average annual income of all the employees in the factory together?

A work is done by three person A, B and C. A alone takes 10 hours to complete the work but B and C working together takes 4 hours, for the completion of the same work. If all of them worked together and completed 14 times of the work, then how many hours have they worked?