In a row of girls facing North Reena is 10th to the left of Pallavi who is 21st from the right end If Malini who is 17th from the left end is fourth to the right of Reena how many girls are there in the row?
A
37
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B
43
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C
44
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D
16th
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E
Data inadequate
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Solution
The correct option is B 43
Pallavi is 21st from right and Reena is 10th to the left of Pallavi So Reena is 31th from right Malini is 17th from the left and 31 -4 x 27th from right so there are (17+27 -1)=43 girls in a row.