A trader marks his goods at 20% above the cost price. If he allows a discount of 5% on the marked price, what profit per cent does he make?
1) 14%
2) 16%
3) 18%
4) 20%
If a man can swim downstream at 6 kmph and upstream at 2 kmph, his speed in still water is :
1) 4 km/hr
3) 3 km/hr
2) 2 km/hr
4)'2.5 km/hr
(1) 1 (2) 3 (3) 7 (4) 9
Three numbers are in the ratio 2 : 7 : 5. If the smallest number is doubled and added to the largest number the result is 132. What is the middle number?
1) 5
2) 25
3) 75
4) 60