There are some balls of red, green and yellow colour lying on a table. There are as many red balls as there are yellow balls.

The colour of shadows of all three towels will be the same.

A die has six faces that are numbered from 1 to 6, with one number on each face. Let us denote the red, white, and blue dices as R, W,...

It is given that the box contains 1 red ball and 3 identical white balls. Let us denote the red ball with R and a white ball with W. When two...

(d) violet colour

(e) If the drawn ball is neither red nor green, then it must be blue, which can be picked in 7C1 = 7 ways. One ball can be picked from...

(d) The required number of ways = (10 +1)(9 +1)(7 +1) -1 = 879.

(c) Combination of red and blue colour results into formation of magenta colour. Where as combination of red and green colour results in to formation of yellow colour. Thus on...

(a) According to the given statements, only statement 1 and 4 can both be true because there may be a situation, when all the balls are black (1) or it...

(B) In the first and second statements, the common digit is 5 and the common word is colour. So, 5 means colour. In the first and third statements, the common code...

Yellow colour in sodium chloride is due to metal excess defect due to which unpaired electrons occupy anionic sites. These sites are called F-centres. These electrons absorb energy from the...