if the speed of a boat in still water is u km/h & the speed of the streams of v km/h than- speed towards downstream- Speed towards up stream- if the speed of boat in downstream u km/h and in upstream v km/h than speed in still water- rate or speed of stream=
10 Millimeter=1 Centimeter 10 Centimeter= 1 Decimeter 100 Centimeter=1 Meter 1000 Meter=1 Kilometer 1 Inch =2.54 Centimeter 12 Inch =1 Foot =30.48 Centimeter 3 Feet=1 Yard=91.44 Centimeter =0.9144 Meter 220 Yard=1 Furlong=201.168 Meter 1760 Yard=8 Furlong=1 Mile=1609.344 Meter 1 Square Mile=640 Acre=27878400 Square Feet
Factors of 108 are the numbers that when multiplied in pairs give the product as 108. The factors of 108 consist of all the integers i.e. positive as well as negative whole numbers – 108 can be divided into such integers. Before we study about factors of 108, let’s have a quick recall about the … Read more
Remembering timetables can be useful in many real-life situations, and is a very crucial step in becoming good at mathematics. It may seem like a lot to memorize, but you will be on your way to having it learned in no time by practicing every day and breaking it down into sections. Tip – You … Read more
If A can do a piece of work in n days then in 1 day’s work If A’s day’s work is 1/n than A can finish the work in n days. Pipes & cisterns Inlet- a pipe connected with a tank/cistern that fill it is known as an inlet. Outlet- a pipe connected with a … Read more
Alligation- the rate to find the ratio in which two or more ingredients at the given price.must be mixed to produce a mixer of a desired price. Mean price- the cost price of a unit remobilty of the mix are is called mean price. Rule of allegation cheaper quantity: dearer quantity= (d-m): (m-c) A container … Read more
Point– a point determines a location, its has neither length nor thickness. Line– a line is a collection of points which can be extended indefinitely on both the sides it has neither breadth nor thickness that has only length(A line consists of infinite point) Properties – only one line can be drawn through two points … Read more
How many weeks in a year? A regular year in the ‘modern’ calendar contains 365 days, which, when divided by 7, equals 52.14 weeks. Every 4 years, there comes a leap year*, putting an extra day into the calendar (poor those 17-year-olds born on February 29th, 2000, who have only had four actual birthdays) (pity … Read more
How to find Median Definition The median of a set of data is the centre value in the set or the middlemost no in the set. The median is also the no that is halfway into the set. To find the median, the data should be arranged 1st in ascending order or descending order i.e. … Read more
The no or value in a data set, that appears more frequently or has a high frequency, is called mode or modal value. In statistics, the value that is repeatedly occurring in a given set of nos is known as the mode. It is 1 of the 3 measures of central tendency, apart from median and mean. … Read more
