In a row of girls, if Madhu, who is tenth from the left, and Veena, who is ninth from theright interchange their places, Madhu becomes fifteenth from the left. How many girls are there in the row?
Answer: (3) 23
————–à10 + 5 9 ß——————
Thus, Number of girls = 10 + 5 + 9 = 24 – 1 = 23
Hence, the number of girls are 23.