990
google search
Google search results:
1: https://www.examveda.com/a-boat-running-upstream-takes-8-hours-48-minutes-to-cover-a-certain-distance-while-it-takes-4-hours-to-cover-the-same-distance-running-downstream-what-is-the-ratio-18851/
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2: https://www.toppr.com/ask/en-us/question/a-boat-running-upstream-takes-8-hours-48-minutes-to-cover-a-certain-distance-while-2/
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3: https://www.toppr.com/ask/question/a-boat-running-upstream-takes-8-hours-48-min-to-cover-a-certain-distance-while/
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4: https://www.tutorialspoint.com/quantitative_aptitude/aptitude_boats_streams_examples.htm
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5: http://www.umsl.edu/~defreeseca/intalg/ch8extra/rate.htm
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6: https://www.youtube.com/watch?v=0E3GQd864Gw
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7: https://themathpage.com/Alg/word-problems2-2.htm
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8: https://www.careerbless.com/aptitude/qa/boatsandstreamss2.php
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9: https://www.hitbullseye.com/Boats-and-Streams-Problems.php
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10: https://quizizz.com/admin/quiz/5e47bdea3db269001d4de7f7/boats-and-streams
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11: https://www.onlinemath4all.com/boats-and-streams.html
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