Question

A box contain 150 apples. If one apple is taken out from the box at random and the probability of its being rotten is 0.06, then find the number of good apples in the box.
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Answer 1

Answer:

Your answer mate !

Probability of rotten Apples = 0.06

Let it be x ,

0.06 = x × 150

x = 150/0.06

x = 9

Now ,

Number of good Apples= 150-9 = 141

Probability = 141/150 = 0.94

Answer 2

★ A box contains 150 apples and one apple is taken out at random, so the sample space has 150 equally likely outcomes.

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❍ Let the box contain x rotten apples, then :

P (rotten apple) = x/150 = 0.06 (given)

➣ x = 150 ༝ 0.06

➣ x = 9

∴ The number of good apples in the box :

➣ 150 - 9

➣ 141.

❖ Therefore,

• Hence, the number of good apples in the box is 141.

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