Johan walks 10 miles at an average rate of 2 miles per hour and returns on a bicycle at an average rate of 10 miles per hour. How long does the entire trip take him?
In theis diagram AB=AC angle A = 40 degree and BD is perpendicular to AC at D. how many degrees are there in angle DBC?
If t is any integer, which of the following represents an odd number?
when the price of an article is reduced by 15% the sales increases by 35% . The percentage change in the total amount of receipts is-
If A's income is 25% less than that of B, then how much percent is B's income more than that of A?
If simple interest on a certain sum of money is Tk. 256 and the rate of interest per annum equals the number of years,then the rate of interest is--
Which of the flowing is a factor of the expression 2x3+1?
A man wishes to cover his floor with tiles, each one measuring 3/4 inch by 2 inches. If his room is rectangular, measuring 12 feet by 18 feet, how many such tiles will he need?