Question
A bag has x blue balls and 4 yellow balls. If the
probability of picking a blue ball is 3/5, find the probability that two balls drawn at once are of different colours.Solution
Total number of balls = x + 4 So, x / (x + 4) = 3/5 ⇒ 5x = 3x + 12 ⇒ 2x = 12 ⇒ x = 6 Desired Probability = (⁶C₁ × ⁴C₁) / ¹⁰C₂ = (6 × 4) / (10 × 9 / 2) = 24 / 45 = 8/15
The statutory body which is not under Ministry of Commerce and Industries?
The Aryans came to India from:
Fodder crop capable of growing under waterlogged condition
Earthing-up is needed in sugarcane under which of the following planting systems.
Tea is example of fermentation of
Which of the following example of semi-perishable food
What is the required conversion period for an organic farm to be certified?
The part of engine where ignition and mixing of fuel and air takes place and gases get sufficient place to mix air by which engine can produce power is ...
Which of the following statement is/are true about herbicide resistance
First hybrid of Pigeon Pea is:
Relevant for Exams:
