There are 25 horses. We have to find out the fastest 3 horses. In one race maximum 5 horses can run. How many such races are required in minimum to get the result ?
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first 5 race you select 5 horses then this 5 horses in 6th race you select first 3 horses
first 5 race you select 5 horses then this 5 horses in 6th race you select first 3 horses
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