A and B together can complete a work in 24 days. B alone does 1/3 rd part of this work in 12 days. How many days will A alone take to complete the remaining work?
24
36
48
72
The heights of a cone and a cylinder are equal. The radii of their bases are in the ratio 2 : 1. The ratio of their volume is
4 : 3
3 : 4
2 : 1
1 : 2
A shopkeeper marks his goods 50% more than the cost price and allows a discount of 25%. His profit or loss percentage is:
37.5%
25.5%
12.5%
25%
A school has 8 periods of 45 min each, every day. How long will each period be if the school has to have 9 periods everyday, assuming the working hours to be the same?
40 min
35 min
30 min
45 min
If the ratio of the cost price and the selling price of an article be 4 : 5, then the percentage of profit is
25%
15%
10%
In an ornament the ratio of gold and copper is 3 : 2. The percentage of gold in the ornament is
60%
40%
30%
20%
A boat moves downstream at the rate of 8 km/hr and upstream at 4 km/hr. The speed of the boat in still water is:
4.5 km/hr
5 km/hr
6 km/hr
6.4 km/hr
If then the value of n is
13
14
15
16
B.
14
Which one of the following combination of measurements can form the sides of a triangle?
9 cm, 6cm, 2cm
11 cm, 3 cm, 12 cm
3 cm, 5cm, 8cm
5cm, 7cm, 13cm