A box contains 10 electric bulbs from which 2 bulbs are defective . Two bulbs are chosen at random. What is the probability that one of them is defective?

Created: 5 years ago | Updated: 2 years ago

3/10

16/45

25/68

8/33

Basic bank recruitment 2018; auditor -- 26.01.2018 গণিত সম্ভাব্যতা (Probability)

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best ans

Defective 2; Normal ৪

Probability that one of them is defective will be,

= (8C1×2C2)/10C2

= (8×2)/45

= 16/45 (ans)

5 years ago

0 0

Md Azizur Rahman

Founder of Satt

সম্ভাব্যতা (Probability)

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1.
$l o g_{2} 4 + l o g_{2} 8 - l o g_{4} 16 = ?$

Created: 3 days ago | Updated: 2 days ago

Bangladesh Oil, Gas and Mineral Corporation (Petrobangla) || Assistant Manager (Electrical / Electronics/Chemical/Petroleum/Petroleum & Mining/IPE/ MME/Naval Architechture/ Telecom/ Geology/Geophysics/Chemistry/Environment/Marketing) (31-05-2024) গণিত

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2.
$I f 5^{x + 1} - 2 \times 5^{x} - 3 = 0$ What is the value of x ?

Created: 3 days ago | Updated: 2 days ago

l o g_{5} 3

\log_{3} 5

VOTE STATISTICS

OPTION 1 : 0

OPTION 2 : 1

OPTION 3 : 0

OPTION 4 : 0

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1 31

3.
A circle has a radius of 30 cm. Determine the length of the arc subtended by an angle of $60^{\circ}$ at the center of the circle.

Created: 3 days ago | Updated: 1 day ago

\frac{π}{6} c m

6 π c m

10 π c m

20 π c m

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4.
Given A = 2i - 3j + 4k and B = i + 2j - k , what is the value of the dot product A. B?

Created: 3 days ago | Updated: 2 days ago

-8

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5.
In how many ways can a committee of 4 people be chosen out of 8 people?

Created: 3 days ago | Updated: 1 day ago

110

126

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6.
The perimeter of a rectangle is 24 inches, and its length is 3 times its width. What are the length and the width of the rectangle?

Created: 3 days ago | Updated: 2 days ago

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A box contains 10 electric bulbs from which 2 bulbs are defective . Two bulbs are chosen at random. What is the probability that one of them is defective?

সম্ভাব্যতা (Probability)

Related Question

1.
$l o g_{2} 4 + l o g_{2} 8 - l o g_{4} 16 = ?$

2.
$I f 5^{x + 1} - 2 \times 5^{x} - 3 = 0$ What is the value of x ?

3.
A circle has a radius of 30 cm. Determine the length of the arc subtended by an angle of $60^{\circ}$ at the center of the circle.

4.
Given A = 2i - 3j + 4k and B = i + 2j - k , what is the value of the dot product A. B?

5.
In how many ways can a committee of 4 people be chosen out of 8 people?

6.
The perimeter of a rectangle is 24 inches, and its length is 3 times its width. What are the length and the width of the rectangle?

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