Subject: Reasoning Ability Topic: Ranking and Ordering Sub-topic: Basic Model 4 - Interchange of Positions Subscribe @ http://bit.ly/2GyZBjc and press the 🔔 Bell icon to get regular updates from our Channel. Question: In a row of boys, Deepak is 7th from the left and Madhu is 12th from the right. If they interchange their positions, Deepak becomes 22nd from the left. What is the total number of boys in the row? 1) 19 2) 31 3) 33 4) Cannot be determined 5) None of these About us: TalentSprint Aptitude Prep channel is designed to help aspirants get ready for various competitive exams including Bank, SSC, Railways, Insurance, Campus Recruitment and other Govt exams. The channel is well-structured into playlists at topic level for the subjects including Quantitative Aptitude, Reasoning Ability, General Intelligence, English Language, General Awareness, Banking and Current Affairs. In addition to the videos, there will be Live sessions by expert faculty to guide you for upcoming exams. There will also be regular posts on downloadable ebooks that can help you with offline preparation. So what are you waiting for? Hit the Subscribe button now and press the Bell icon to get regular updates from our channel. Happy learning! TalentSprint Aptitude Prep