Math, asked by mohitbhagoriya246, 1 month ago

If one basket contains 25 oranges, then n such baskets will contain
oranges.
[a]
25 + n
[b]
25n
25
[C]
Idl
25 - n​

Answers

Answered by tom2298
1

5n=60

Step-by-step Explanation

Answered by tarabkhan41gmailcom
14

Step-by-step explanation:

basket contains

15

apples and

10

oranges out of which

4

apples and

2

oranges are defective. If a person takes two fruits at random, what is the probability that either both are apples or both are good

A.

221

300

B.

312

401

C. None of these D.

1

2

Answer: Option A

Explanation:

Number of ways in which two fruits can be taken from

25

fruits

=

25

C

2

(∵ total fruits

=

15

+

10

=

25

)

Number of ways in which two apples can be taken from

15

apples

=

15

C

2

P(both are apples)

=

15

C

2

25

C

2

Number of ways in which two fruits taken can be taken from

19

good fruits

=

19

C

2

(∵ total good fruits

=

(

15

+

10

)

-

(

4

+

2

)

=

19

)

P(both are good)

=

19

C

2

25

C

2

There are

11

good apples. Number of ways in which two apples can be taken from these

11

good apples

=

11

C

2

P(both are apples and both are good)

=

11

C

2

25

C

2

P(both are apples or both are good)

= P(both are apples )+ P(both are good) - P(both are apples and both are good)(Reference: addition rule)

15

C

2

25

C

2

+

19

C

2

25

C

2

11

C

2

25

C

2

=

15

×

14

2

×

1

+

19

×

18

2

×

1

11

×

10

2

×

1

25

×

24

2

×

1

=

221

300

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