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google search
Google search results:
1: https://www.toppr.com/ask/en-hu/question/one-pipe-can-fill-a-tank-three-times-as-fast-as-another-pipe-if-together/
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2: https://www.examveda.com/one-pipe-can-fill-a-tank-three-times-as-fast-as-another-pipe-if-together-the-two-pipes-can-fill-the-tank-in-36-minutes-then-the-slower-pipe-alone-18844/
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3: https://www.quora.com/One-pipe-can-fill-a-tank-three-times-as-fast-as-another-pipe-If-together-the-two-pipes-can-fill-the-tank-in-36-minutes-then-the-slower-pipe-alone-will-be-able-to-fill-the-tank-in-1
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4: https://brainly.in/question/7048359
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5: https://www.youth4work.com/Talent/Aptitude/Forum/118558-One-pipe-can-fill-a-tank-three-times-as-?yFast=On
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6: https://www.indiabix.com/aptitude/pipes-and-cistern/033003
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7: https://www.competoid.com/quiz_answers/14-0-60648/Question_answers/
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8: https://www.sawaal.com/pipes-and-cistern-questions-and-answers/one-pipe-can-fill-a-tank-nbspthree-times-as-fast-as-another-pipe-if-together-the-two-pipes-can-fill-_6563
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