Difficulty Popularity

You are provided with twenty five different horses and you must find out who are the fastest horses. You can conduct a race of five horses only at one time. There is no point in the race where you can find out the actual speed of a horse in a race.

How many races will it take to help you determine the fastest three horses?

How many races will it take to help you determine the fastest three horses?

Difficulty Popularity

A box contains seven purple, five blue and eleven yellow balls.

What is the minimum number of tries required to get one blue and one yellow ball ?

What is the minimum number of tries required to get one blue and one yellow ball ?

Difficulty Popularity

Peter travels 20 km a day uniformly. John starts from the same point peter started after three days. He travels at a speed of 15 km a day on the first day, at 19 km a day of the second day and so on following an arithmetic progression.

In how many days will he catch up with Peter?

In how many days will he catch up with Peter?

Difficulty Popularity

You are invited to a logical competition where some mini games are to be played among the participants that comprises of logics. What they do is make you stand in front of the water tank and give you two jars - one of 3 liters capacity and one of 5 liters capacity. Then they tell you to collect exactly 4 liters of water using the two jugs.

How will you do it?

How will you do it?

Difficulty Popularity

Can you determine how many times do the minute and hour hands of a clock overlap in a day?

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20 July

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19 July

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18 July

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17 July

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16 July

In his mathematics activity class, Andy ...