Algebra
A collection of formulae, tips and tricks for Algebra.
Mensuration
A collection of formulae, tips, tricks and useful terms for area, perimeter and volume of various figures.
Pipes & Cisterns
Inlet - A pipe connected with a tank or a cistern or a reservoir, that fills it, is known as an inlet. Outlet - A pipe connected with a tank…
Time, Distance & Speed
Formulae: $latex Speed\ =\ \frac{Distance}{Time}&s=2$ $latex Time\ =\ \frac{Distance}{Speed}&s=2$ $latex Distance\ =\ Speed\ \times\ Time&s=2$ Tips & Tricks: 1. km/hr to m/s conversion: $latex x\ km/hr\ =\ x\ \times\ \frac{5}{18}\…
Time and Work
Work from Days - If A can do a piece of work in n, then A's 1 day work is $latex \frac{1}{n}&s=2$. Days from Work - If A's 1 day…
Chain Rule
Direct Proportion - Two quantities are directly proportional if on increase (or decrease) of the one, the other increases (or decreases) to the same extent. e.g. Cost is directly proportional…
Mixtures and Alligations
Mixture - Two or more ingredients mixed together in certain quantities to obtain desired quantities. Alligations - The rule to find the ration of ingredients in mixture. Formulae: $latex \frac{Dearer…
Ratio and Proportion
Ratio: A ratio indicates how many times one number contains another. Thus, the ratio a is to b is the fraction $latex \frac{a}{b}&s=2$, written as a:b. In an inverse or…
Simple Interest
Whenever a person borrow or lend out money for a certain period of time, an extra amount can be paid over the original amount. This extra amount is known as…
Profit and Loss
Cost Price (CP) - The price at which an article is purchased. It is generally abbreviated as CP. Selling Price (CP) - The price at which an article is sold.…
