Given 5 different green dyes ,four different blue dyes and three different red dyes,the number of combinations of dyes which can be chosen taking at least one green and one blue dye is
1 Answers
Talk Doctor Online in Bissoy App
1. the number of ways in the squares of 8x8 chess board can be painted red or blue so that each 2x2 square has two red and two blue squares is
Solution: For an m×n chessboard there are 2m+2n−2 ways. Case I. There are two horizontally adjacent squares of the same color: 2m−2 ways. Case II. There are two vertically adjacent squares of the same color: 2n−2 ways. Case III. None of the...
1 Answers 1 views
A jar contains 24 marbles, some are green and others are blue. If a marble is drawn at random from the jar, the probability that it is green is 2/3,
Solution: Total number of outcomes = 24 P (Green) = 2/3 If number of green balls is G then; G/24 = 2/3 or, G = (24*2)/3 = 16 Hence, number of blue balls = 24 –...
1 Answers 1 views
In monohybrid cross of red and white flower, Mendel got only red flower. On setting the F1 plants having red flower
On crossing red and white flower only red colour flower appeared in the F1 generation. But the white colour flower again appear in the F2 generation which is raised out...
1 Answers 1 views
From 5 different green balls, four different blue balls and three different red balls, how many combinations of balls can be chosen
Total combination of balls = 212 Combination of balls with no green balls = 27 Combination of balls with no blue balls = 28 Combination of balls with no blue balls and no green...
1 Answers 1 views
Three identical towels of red, blue and green colour are hanging on a clothes line in the sun. What would be the colour of shadows of these towels?
The colour of shadows of all three towels will be the same.
1 Answers 1 views
A box contains 10 red marbles, 20 blue marbles and 30 green marbles. 5 marbles are drawn from the box, what is the probability that
Total number of marbles = 10 + 20 + 30 = 60 Number of ways of drawing 5 marbles from 60 marbles = 60C5 (i) All the drawn marbles will be blue...
1 Answers 1 views
Let nr and nb be respectively the number of photons emitted by a red bulb and a blue bulb of equal power in a given time.
(c) Red bulb and a blue bulb of equal power in a given time nr > nb.
1 Answers 1 views
The green scum seen in the fresh water bodies is: a. blue green algae
d. both (a) and (c) is correct
1 Answers 1 views
In a box there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
(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...
1 Answers 4 views
The number of ways in which one or more balls can be selected out of 10 white, 9 green and 7 blue balls is
(d) The required number of ways = (10 +1)(9 +1)(7 +1) -1 = 879.
1 Answers 1 views