37. Ramdas invested 90000 in a cosm...
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37. Ramdas invested 90000 in a cosmetic business. After few months, Shyamdas joined him with 30000. At the end of the year the total profit was divided between them in ratio 4:1. After how many months did Shryamdas joined busineses? RRB NTPC (Phase 1) 2016 (2) 3 (4) 6 RRB NTE (1) 4 (3) 1

11th - 12th Class
Maths
Solution
145
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37. (2) : : Ratio of profit [ begin{array}{l} =90000 times 12: 30000 times x =36: x end{array} ] According to the question, [ therefore quad begin{array}{l} frac{36}{x}=frac{4}{1} x=9 end{array} ] Hence, Shyamdas joined business after 3 months.
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