#csat2023

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Raj has 10 pairs of red shoes which means 20 shoes in total ( 10 left leg + 10 right leg shoes) Likewise 9 pairs of white shoes ( 18 shoes), 8 pairs of black shoes ( 16 shoes) inca box.
To select a Red pair of shoes, The maximum number of attempts he has to make is ?

Let assume that he was getting only white and black shoes at the first instance.
So 18 white shoes + 16 black shoes = 34 shoes, which means 34 attempts. Then assume he's started to getting only left leg shoes of red colour = 10 left leg shoes. Now the total attempts are 18+16+10 = 44.
To get a red pair of shoes. He should get both left leg and right leg shoes. As of now he got only left leg shoes of red colour. So in his next attempt he will get one right leg shoes of red colour. It satisfies the question.
So total attempts to get a red pair of shoes = 18+16+10+1 = 45.

Hence answer D) 45✅

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