If m men can paint a house in d days, how many days will it take (m + 2) men to paint the same house ?
md + 2
md - 2
The earth travels around the sun at a speed of approximately 18.5 kilometres per second. This approximate speed is how many kilometres per hour ?
1,080
54,700
64,800
66,600
If 3 miles are equivalent to 4.83 kilometers, then 11.27 kilometers are equivalent to how many miles ?
11.7 miles
13.4 miles
7.0 miles
9.2 miles
An empty pool being filled with water at a constant rate takes 8 hours to fill to of its capacity. How much more time will it take to finish filling the pool ?
4 hrs. 30 mins.
5 hrs. 20 mins.
6 hrs. 48 mins.
7 hrs. 12 mins.
A car runs until the gas tank is full. The tank is then filled to capacity by putting in 14 litres. The capacity of the gas tank of the car is -
11 litres
13 litres
16 litres
21 litres
Two trains, 121 metres and 99 metres in lengths, are running in opposite directions, one at the rate of 40 km per hour and the other rate of 32 km per hour. In how much time will they be completely clear from one another from the moment they meet ?
10 seconds
11 seconds
16 seconds
21 seconds
Praveen is standing 180 metres due north of point P. Ravi is standing 240 metres due west of point P. What is the shortest distance between Ravi and Praveen ?
160 metres
300 metres
420 metres
650 metres
A is twice as good as a workman B, And together, they finish a piece of work in 14 days. In how many days, can it be done by each separately ?
A - 14 days, B - 28 days
A - 24 days, B - 42 days
A - 21 days, B - 42 days
None of these
A school has enough bread to feed 30 students for 4 days. If 10 more students are added, how many days will the bread last ?
5
3
A father can do a job in a certain number of hours. His son takes twice as long to do the job. Working together, they can do the job in 6 hours. How many hours does it take the father to do the job alone ?
9 hrs
18 hrs
24 hrs
27 hrs
