1. A cloth merchant on selling 33 metres of cloth obtains a profit equal to the selling price of 11 metres of cloth. The profit is

11%

40%

22%

50%

2. A single discount equivalent to successive discounts of 20%, 10% and 5% is

36.1%

35%

35.6%

31.6%

3. A, B and C started a business with their investments in the ratio 1 : 2 : 4. After 6 months A increased his capital by 50% and B invested twice the amount as before, while C withdrew 1/4 th of his own investment. The ratio of their profits at the end of the year was

5 : 14 : 16

10 : 5 : 9

5 : 12 : 14

6 : 9 : 17

4. Two trains 180 metres and 120 metres in length are running towards each other on parallel tracks, one at the rate 65 km/hour and another at 55 km/hour. In how many seconds will they be clear of each other from the moment they meet?

15

6

9

12

5. Three men can complete a piece of work in 6 days. Two days after they started the work, 3 more men joined them. How many days will they take to complete the remaining work?

4 days

1 day

2 days

3 days