Dipika while rowing at her normal rate , can travel 12 km downstream in a river 6 hour less than it takes to cover her the same distance upstream.However, when she rows with twice her normal rate , she takes only one hour less going 12 km downstream than the travel of 12 km upstream. What is the speed of current per hour ?
I just want to say that....pic wale book or 2017 ki new rakesh yadav sir ki advance math book me questions ki kuch differences hai Kya????
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The time taken by 4 men to complete a job is double the time taken by 5 children to complete the same job. Each man is twice as fast as a woman. How long will 12 men, 10 children and 8 women take to complete a job, given that a child would finish the job in 20 days.
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There are three bottles of mixture of syrup and water of ratios 2:3, 3:4 and 7:5. 10 Litres of first and 21 Litres of second bottles are taken. How much quantity from third bottle is to be taken so that final mixture from three bottles will be of ratios 1:1.
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What is needed ARE not large houses but small cottages.
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