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प्रश्न
A rail journey of 75 km costs Rs 215. How much will a journey of 120 km cost?
विकल्प
Rs 344
Rs 324
Rs 268.75
none of these
उत्तर
Rs 344
Cost of rail journey of 75 km = Rs 215
Cost of rail journey of 1 km = Rs `215/75`
Cost of rail journey of 120 km = `120 × 215/75 = 25800/75` = Rs 344
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