Q1. Some boys are standing in a queue facing north. Kamal is 34th from the left end, while Ravi is 20th from the right end. Ravi is 9th to the right of Eshaan. If Kamal stands second to the left of Eshaan, find the total number of boys in the row.
A 60
B 62
C 64 Correct
D 66
Explanation
Kamal is 34th from the left. Since Kamal is second to the left of Eshaan, Eshaan is 36th from the left. Ravi is 9th to the right of Eshaan, so Ravi is 45th from the left. Ravi is also 20th from the right. Therefore, total boys = Ravi's left position + Ravi's right position - 1 = 45 + 20 - 1 = 64. The counts 60, 62 and 66 do not satisfy both Ravi's right-end rank and his position relative to Eshaan.