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Asif can do a job in 15 hours, and Russel can do the same job in 9 hours. If they start doing the job together at 6 a.m., and Russel stops working at 9 a.m., at what time will Asif finish the job?

Asif can do a job in 15 hours, and Russel can do the same job in 9 hours. If they start doing the job together at 6 a.m., and Russel stops working at 9 a.m., at what time will Asif finish the job? Correct Answer 4 p. m.

Asif এবং Russel একত্রে 1 ঘণ্টায় করে কাজের <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfenced><mrow><mfrac><mn>1</mn><mn>15</mn></mfrac><mo> + </mo><mfrac><mn>1</mn><mn>9</mn></mfrac></mrow></mfenced><mo> = </mo><mfrac><mrow><mn>3</mn><mo> + </mo><mn>5</mn></mrow><mn>45</mn></mfrac><mo> = </mo><mfrac><mn>8</mn><mn>45</mn></mfrac></math> অংশ⸫ " " " " 3 " " " <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>8</mn><mo>&#xD7;</mo><mn>3</mn></mrow><mn>45</mn></mfrac><mo> = </mo><mfrac><mn>8</mn><mn>15</mn></mfrac></math> অংশ⸫ অবশিষ্ট কাজ <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfenced><mrow><mn>1</mn><mo> - </mo><mfrac><mn>8</mn><mn>15</mn></mfrac></mrow></mfenced><mo> = </mo><mfrac><mrow><mn>15</mn><mo> - </mo><mn>8</mn></mrow><mn>15</mn></mfrac><mo> = </mo><mfrac><mn>7</mn><mn>15</mn></mfrac></math> অংশ⸫ Asif <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mn>1</mn><mn>15</mn></mfrac></math> অংশ কাজ করে ১ ঘণ্টায়⸫ " <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mn>7</mn><mn>15</mn></mfrac></math> " " " <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>15</mn><mo>&#xD7;</mo><mn>7</mn></mrow><mn>15</mn></mfrac><mo> = </mo><mn>7</mn></math> ঘণ্টায়সুতরাং Asif কাজটি শেষ করে (9.00 am + 7 ঘণ্টা) = 4 pm - এ।

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