Tips and Tricks on Alligation
Alligation:It is the rule that enables us to find the ratio in which two or more ingredients at the given price must be mixed to…
Tips and Tricks to simplify algebra problems
(a + b)(a – b) = (a2 – b2) (a + b)2 = (a2 + b2 + 2ab) (a – b)2 = (a2 + b2 – 2ab) (a + b + c)2 = a2 + b2 + c2 + 2(ab + bc + ca) (a3 + b3) = (a + b)(a2 – ab + b2) (a3 – b3) = (a – b)(a2 + ab + b2) (a3 + b3 + c3 – 3abc) = (a + b + c)(a2 + b2 + c2 – ab – bc – ac) When a + b + c =…
Tricks to solve Aptitude Problems – Profit and Loss
IMPORTANT FACTS Cost Price: The price, at which an article is purchased, is called its cost price, abbreviated as C.P. Selling Price: The price, at which an…
Tips and Tricks on H.C.F and L.C.M
Factors and Multiples:If number a divided another number b exactly, we say that a is a factor of b.In this case, b is called a multiple of a. Highest Common Factor (H.C.F.) or Greatest Common Measure (G.C.M.) or Greatest…
Tricks to Solve Problems on Square Root & Cube Root
Square Root If x2 = y, we say that the square root of y is x and we write √y = (+/-)x Thus, √4 = 2, -2 √9 = 3, -3 √196 = 14, -14 Cube Root: The…
Tricks to solve partnership related questions in Aptitude Section
Partnership:When two or more than two persons run a business jointly, they are called partners and the deal is known as partnership. Ratio of Divisions of Gains: When…
विद्युत: बोर्ड परीक्षा के लिए महत्वपूर्ण नोट्स
आवेश – आवेश परमाणु का एक मूल्य कण होता हैं l यह धनात्मक भी हो सकता हैं और ऋणात्मक भी l समान आवेश एक-दूसरे को…
How do Organisms Reproduce : Short Notes And Board Exam Questions
How do Organisms Reproduce • Reproduction is the process by which living organisms produce new individuals similar to themselves. It ensures continuity of life on…
नोट्स : रासायनिक अभिक्रियाएं एवं समीकरण
कक्षा 10 बोर्ड परीक्षा के लिए रासायनिक अभिक्रियाएँ एवं समीकरण पर नोट्स और वीडियो व्याख्यान (पढ़ते चलो बढ़ते चलो – eckovation )। आईआईटी दिल्ली से…
प्रकाश- परावर्तन तथा अपवर्तन (महत्वपूर्ण प्रश्नावली)
महत्वपूर्ण प्रश्नावली 1. यदि समतल दर्पण का आवर्धन…