A light bulb is hanging in the first floor of the room. There are three switches in the ground floor room. One of these switches belongs to ...

THE ANSWER: 39 times. 1, 2, 4, 14, 21, 22, 24, 31, 32, 34, 40, 41 (twice), 42 (twice), 43, 44 (twice), 45, 46, 47, 48, 49, 51, 52, 54, 61, 6...

Snapshot About the Exam The Mathematics Olympiad is organized by NBHM (National Board for Higher Mathematics) and is currently run in associ...

1. Two boxes contain between them 65 balls of several different sizes. Each ball is white, black, red or yellow. If you take any 5 balls of ...

Ans :- (15,1,9),(2,13,10),(2,11,8,4)

Start it.. Let X= Y 2X= 2Y Hence 2X- X= 2Y- Y => 2X- 2Y= X- Y => 2(X-Y)= X-Y => 2=1 Now it has been proved that 2=1.

Find a nine digit numbers, using the numbers 1 to 9, and using each number once without repeats, such that; the first digit is a number divi...

1 x 8 + 1 = 9 12 x 8 + 2 = 98 123 x 8 + 3 = 987 1234 x 8 + 4 = 9876 12345 x 8 + 5 =98765 123456 x 8 + 6 =987654 1234567 x 8 + 7 =9876543 123...