Three men start together to travel the same way around a circular track of 11 kilometres in circumference. Their speeds are 4, 5 1/2 and 8 kilometres per hour, respectively. When will they meet at the starting point?
In following question a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces.0.5, 1.5, 4.5, 13.5.
The use of antibiotic is a very effective way of killing disease causing bacteria. some time people do not finish all of their pills. this can result in
