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Question

I was sitting alone in a park. After a while there came an old man followed by an old lady. They were followed by two couples who were accompanied by a child each. What was the number of total persons present in park?

A
10
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B
9
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C
11
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D
8
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Solution

The correct option is D 11
S.NDetails Number
1. I was sitting alone in a park 1
2. After a while there came an old man and a old lady 1+1=2
3. Two couples 2+2=4
4. accompanied by a child each 1×2+1×2=4
5. Total number pf persons present 1+2+4+4=11

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