Question

Tony scored 17marks out of 20. His friend Peter scored 40 marks out of 50.Whose performane is better​

Answer 1

Answer:

“Education is not preparation for life; Education is life itself.” At Sam Internati... Read more. VISION. We have a vision of dedicating ourselves ...ᥒTo find:

The probability of getting

(i) A king Card and Red Coloured card.

So,

There are four different cards,

Clubs (black) = 13. Here 1 to 10 and 1 king, 1 queen, and 1 jack

Spades (black) = 13. Here 1 to 10 and 1 king, 1 queen, and 1 jack

Diamond (red) = 13. Here 1 to 10 and 1 king, 1 queen, and 1 jack

Heart (red) = 13. Here 1 to 10 and 1 king, 1 queen, and 1 jack

So,

A king card = 4

Red colour cards = 13 - 2(king cards, as 2 red king cards are mentioned above) = 11

So,

A king and red colour card = 4 + 11 = 15

Therefore,

Number of favourable outcomes = 15

Total number of possible outcomes = 52

Hence,

Probability = \frac{Number\ of\ favourable\ outcomes}{Total\ number\ of\ possible\ outcomes}Probability=

Total number of possible outcomes

Number of favourable outcomes

So,

Probability of getting a king card and a red coloured card is

= \frac{15}{52}=

52

15

Answer 2

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Tony's performance is better.

Given that:

Tony scored 17 marks out of 20.

His friend Peter scored 40 marks out of 50.

Formula used:

Total percent marks obtained = (Obtained marks × 100)/(Total marks) %

Finding the total percent marks obtained by Tony:

Total percent marks obtained = (17 × 100)/20 %

Total percent marks obtained = 1700/20 %

Total percent marks obtained = 85 %

Finding the total percent marks obtained by Peter:

Total percent marks obtained = (40 × 100)/50 %

Total percent marks obtained = 4000/50 %

Total percent marks obtained = 80 %

We get that:

Tony's performance is better than Peter as Tony gets 85% marks and Peter gets 80% marks.