Grammar Basics-Nouns

Wednesday, July 25, 2018 TathaGat No comments

This lesson covers the fundamentals and types of nouns, knowledge of which will help you in B-school entrance exams like the NMAT, SNAP and IIFT.

So, let’s get started!

Noun: A noun is a word that is used to name a person, animal, place, thing, o...

Saturday, July 14, 2018 TG.Prabhat 5 Comments

The NMAT by GMAC™ exam is used for admissions to some of the leading graduate business programmes in India.The score on this exam is accepted by SVKM’s NMIMS (Mumbai, Bangalore, Hyderabad), Xavier University (Bhubaneswar), Shiv Nad...

Nifty Formulae for Natural Numbers

Friday, July 13, 2018 TG.Raman No comments

Some properties of natural numbers :

1•Sum of first n natural numbers : 1 + 2 + 3 +……+ n = n ( n +1)/2

2• Sum of squares of first n natural numbers : 1² + 2² + 3² +……+ n² = n ( n +1) ( 2n +1) /6

3• Sum of cubes of first n natural numbers : 1³ + 2...

Similar Triangles- A Primer for CAT 2018-2019

Wednesday, July 11, 2018 TathaGat No comments

Similar Triangles

The current article deals with a frequently occurring topic in geometry in CAT- similarity of triangles. Most of you will notice that this topic is coming year after year in CAT and, as geometry questions in CAT are easy compare...

Divisibility Rule of a Number (Divisibility Test)

Wednesday, July 04, 2018 TathaGat 4 Comments

Divisibility Rules A. Divisibility by 2, 4, 8, 16, 32.

A number is divisible by 2, 4, 8, 16, 32,.. 2 when the number formed by the last one, two, three, four, five…n digits is divisible by 2, 4, 8, 16, 32,..2 respectively.

Example: 1246384 is...

Number of Digits in the Exponent of a Number

Tuesday, July 03, 2018 TG.Raman No comments

LOGARITHM

If a is a positive real number other than 1, and am = x, then we can write: m = logax, and we say that the value of log x to the base a is m.
Examples:

(i) 104 = 10000     log10 10000 = 4.

(ii) 35 = 243     log3 243 = 5.

(iii) (0.1)3 = 0...

Remainders theorem – Euler’s – Carmichael’s Theorem

Friday, June 22, 2018 TathaGat No comments

Remainder Theorems

It is uncanny how children pick up a lot of small habits and beliefs of their parents. Even the ones that rebel against their parents bear the subconscious resemblance to their father or mother. There is a lesson for instructor...

Counting In Geometry!

Tuesday, June 19, 2018 TG.Raman 6 Comments

Counting in Geometry

(a) In a plane, if there are n points of which no three are collinear, then

1. The number of straight lines that can be formed by joining them is nC2.
2. The number of triangles that can be formed by joining them is nC3.
3. The numbe...