First bag contains 4 red and 3 black balls. Second bag contains 2 red and 4 black balls. One bag is selected at random. From the selected bag, one ball is drawn. Find the probability that the ball drawn is red. (Probability)

Shohan

10 views

2025-01-04 04:42

1 Answers

Shohan

$P r o b a b i l i t y t h a t t h e f i r s t b a g i s c h o s e n a n d a r e d b a l l i s d r a w n = \frac{1}{2} \times \frac{4}{3 + 4} = \frac{1}{2} \times \frac{4}{7} = \frac{2}{7} A g a i n, p r o b a b i l i t y t h a t t h e s e c o n d b a g i s c h o s e n a n d a r e d b a l l i s d r a w n = \frac{1}{2} \times \frac{2}{6} = \frac{1}{6} ∴ P r o b a b i l i t y o f r e d = \frac{2}{7} + \frac{1}{6} = \frac{12 + 7}{42} = \frac{19}{42} (a n s w e r)$

10 views Answered 2024-12-14 13:31

Related Questions

If R is selected which of the bowlers CANNOT be selected?

1 Answers 5 Views

If neither S nor U is selected, which two pacers must be selected?

1 Answers 4 Views

If G, I and S are selected for the team, who must be the fourth bowler selected?

1 Answers 4 Views

If T is selected and U is not selected for the team, who us be the fourth bower selected?

1 Answers 8 Views

If T is selected and U is not selected for the team, how many different combinations of bowlers will available for the coach to choose from?

1 Answers 5 Views

3 coins are tossed at random, show the sample space and find the the probability of getting: i. One head two tails ii. One tail iii. One tail and two heads (statistics)

1 Answers 4 Views

A gardener plants two rectangular gardens in separate regions on his property. The first garden has an area of 600 square feet and a length of 40 feet. If the second garden has a width twice that of the first garden, but only half of the area, what is the ratio of the perimeter of the first garden to that of the second garden?

1 Answers 5 Views

A box contains 5 green, 4 yellow and 3 white balls. Three balls are drawn at random. What is the probability that they are not of same colour? (Probability)

1 Answers 5 Views

There was a shipment of cars. Out of which half was black in colour. Remaining cars were equally blue, white and red. 70% of black cars, 80% of blue cars, 30% of white cars, 40% of red cars were sold. What percentage of total cars were sold? (Equation (সমীকরণ))

1 Answers 4 Views

A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. Find the time required by the first pipe to fill the tank? (Pipe & Cistern)

1 Answers 9 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)