In many of competitive exams, you are asked to find out unit digit in some n^p where n and p are positive integers. Sometimes it is a...

For any integers a, b, c, d and positive integer n a ≡ a (mod n) If a ≡ b (mod n), then b ≡ a (mod n). If a ≡ b (mod n) and b ≡ c (mod...

Consider this example. In a mixture of 35 liters of milk and water, the milk has four parts and water has part. Obviously there are a...

Can you the think the set of remainders as a class? See the example. Let a == b mod 2. Every integer is congruent modulo 2 to exactly...

Play with remainders What a superb idea did Gauss have long time ago!!!! If you add two numbers, the remainders obtained after dividing...

I am not a teacher of Mathematics in any school and I don’t teach in any institute either, nor do I have any coaching institute. This has...

What are THEY teaching? Alas! To my astonishment, in many supplementary books of Mathematics I see the most tedious methods of solving...

Why do I love Mathematics? Doing Mathematics is fun, thrill and excitement. I don’t know why the teachers don’t make themselves belong to...

देश के 15 प्रतिष्ठित लॉ स्‍कूल्‍स के लिये प्रतिवर्ष आयोजित होने वाली क्‍लेट (CLAT – Common Law Admission Test) परीक्षा में 200 मार्क्‍स...