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google search
Google search results:
1: https://www.examveda.com/distance-between-a-and-b-is-72-km-two-men-started-walking-from-a-and-b-at-the-same-time-towards-each-other-the-person-who-started-from-a-traveled-250/
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2: https://brainly.in/question/8495029
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3: https://www.allinterview.com/showanswers/95987/2-men-at-same-tym-start-walking-towards-each-other-from-n-b-72-kms-apart-sp-4kmp.html
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4: https://m4maths.com/7905-2-men-at-same-tym-start-walking-towards-each-other-from-A-n-B-72-kms-apart-sp-of-A.html
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5: https://www.toppr.com/ask/question/two-men-set-out-at-the-same-time-to-walk-towards-each-other-from-m/
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6: https://www.quora.com/Two-cars-A-and-B-travel-along-the-same-road-in-the-same-direction-from-the-same-starting-point-Car-A-maintains-a-speed-of-60-km-h-and-car-B-is-at-75-km-h-But-car-B-started-one-hour-later-How-many-hours-will-B-take
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7: https://interviewmania.com/discussion/87732-aptitude-speed-time-and-distance
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8: https://gmatclub.com/forum/time-speed-and-distance-simplified-150163.html
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9: https://openstax.org/books/physics/pages/2-2-speed-and-velocity
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10: http://mathpractices.edc.org/pdf/Distance_Rate_and_Time-Walking_Home.pdf
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11: https://books.google.com/books?id=1-EDAAAAMBAJ&pg=PA15&lpg=PA15&dq=Two+men+A+and+B,+72+kms+apart+start+walking+towards+each+other+at+the+same+time.+Speed+of+A+is+4+kmph.+Speed+of+B+is+2+kmph+in+1st+hr,2.5+in+2nd,+3%0Ain+3rd+and+so+on.+When+will+they+meet?%0AO+Midway%0AO+In+10+hr%0AO+Never+meet%0AO+none%0AO+Clear+Response&source=bl&ots=r3ii-inIqa&sig=ACfU3U2-je6FISRZvVdBRryfNjgXuwepug&hl=en&sa=X&ved=2ahUKEwj5iJb-ypTzAhWUHTQIHV0VAVkQ6AF6BAgSEAM
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