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Ankur sejwal

· started a discussion

· 1 Months ago

correct explanation not given (Question: 187812.0 )

correct explanation is not mentioned

Question:
Some boys are sitting in a row facing north. P is 7th on the left of Q. R, who is 20th in the row from left, is 7th on the right of Q. If S, who is third on the right of P, is 20th in the row from right, how many boys are there in the row ?
Options:
A) 30
B) 28
C) Cannot be determined
D) None of these
Solution:
Ans: (b) 


Total number of boys in the row 

= position of S from left + position of S from right – 1

= 20 + 9 – 1 = 28 boys 

Michael Kom

· commented

· 1 Months ago

how comes ...position of S from Left = 20

Knowledge Expert

· commented

· 1 Months ago

Dear Student,
Total number of boys in the row
= position of S from left + position of S from right – 1
= 20 + 9 – 1 = 28 boys

Keep learning !!
Best wishes
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