Question
In a row of boys facing the north, Amit is fifteenth
from the left end and Dev is fifteenth from the right end. Subham, who is fifth to the right of Amit, is fourth to the left of Dev in the row. How many girls are there in the row?Solution
Amit’s rank from the left end = 15th. Dev’s rank from the right end = 15th. Subham, who is fifth to the right of Amit, is fourth to the left of Dev in the row So, total no. of boys in the row = (Subham’s Rank from the left end + Subham’s Rank from the right end) – 1 = [(15 + 5) + (15 + 4)] – 1 = 49 – 1 = 48
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