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Rahul singh

· started a discussion

· 1 Months ago

sol (Question:112270.0)

short method????

Question:
A man plays 100 games with cards. He gets Rs 5 if he wins and pays Rs 2, if he loses. If he wins Rs 3 on the whole, is how many games did he win?
Options:
A) 25
B) 28
C) 29
D) 32
Solution:
Ans: (c)

Let he won x times 

Then Number of loss = 100-x

According to questions,

5×x-(100-x)2=3

5x-200+2x=3

7x=203

x=203/7

=29 

Therefore he won 29 times.

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