Average
Average of given numbers is equal to the sum of given numb...Rules to calculate average
Percentage
Percentage = Per + Cent The meaning of 'Cent' is 'Century', i.e. 'Hundred' Th...Profit And Loss
Cost Price (CP) : Cost Price is the price at which an article is purchased. C.P. is...Problems Based on Numbers
Question (1) The sum of two numbers is 50. If one of the numbers is 20 then find t...Simple Interest
Simple Interest (SI)...Important Terms and Formula related to simple interest
Time and Distance
The length of path covered by an object is called DISTANCE....Distance