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1. If 1/3 of a tank holds 80 litres of water, then the quantity of water that 1/5 tank holds is

48 litres

42 litres

50 litres

52 litres

2. Four numbers are in the ratio 1 : 2 : 3 : 4. Their sum is 20. The sum of the first and 4th number is equal to:

5

8

10

80

3. The cost price of 12 articles is same as the selling price of 8 articles. The profit percent is:-

30%

50%

40%

20%

4. The average age of 12 players of a team is 25 years. If the captain's age is included, the average age is increased by 1 year. The age of the captain is:

25 years

38 years

36 years

26 years

5. An aeroplane covers a certain distance at a speed of 280 km/hour in 4 hours. To cover the same distance in 1¼ hr, it must travel at a speed of:

869 km/hour

866 km/hour

968 km/hour

896 km/hour