616: Which of the following political parties is / are national political parties?
1. Muslim league
2. Revolutionary socialist party
3. All India forward block
4. Peasants and workers party of India
(a) 2 and 4
(b) 3 only
(c) 1, 2, 3
(d) None
617: The average speed of a train in the onward journey is 25% more than that of the return journey. The train halts for one hour on reaching the destination. The total time taken for the complete to and fro journey is 17 hours covering a distance of 800 km. The speed of the train in the onward journey is
(a) 45 km per hour
(b) 47.06 km per hour
(c) 50.00 km per hour
(d) 56.25 km per hour
618: Which one of the following is the continent with the highest mean elevation in the world ?
(a) Antarctica
(b) North America
(c) Asia
(d) South America
619: 50 men or 80 women can finish a job in , 50 days. A contractor deploys 40 men and 48 women for this work, but after every duration of 10 days, 5 men and 8 women are removed till the work is completed. The work is completed in:
(a) 45 days
(b) 50 days
(c) 54 days
(d) 62 days
620: Recently, a series of uprisings of people referred to as `Arab Spring originally started from
(a) Egypt
(b) Lebanon
(c) Syria
(d) Tunisia