A practice race was conducted in the camp. Tuffy took $20$ seconds to finish the race. Luke took twice the time taken by Tuffy. Toby took half the time taken by Tuffy. The difference between the time taken by Luke and Toby gives the time taken by Barry. What is the time taken by Barry?

Less than the time taken by Tuffy

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Equal to the time taken by Tuffy

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Cannot be determined

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More than the time taken by Tuffy

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Solution

The correct option is D More than the time taken by Tuffy
Time taken by Luke $=$ Twice the time taken by Tuffy $= 2 \times 20 = 40$ seconds
Time taken by Toby $=$ Half the time taken by Tuffy $= 20 \div 2 = 10$ seconds
Time taken by Barry $=$ Time taken by Tuffy $-$ Time taken by Toby $= 40 - 10 = 30$ seconds
Thus, the time taken by Barry is more than the time taken by Tuffy, i.e., $30$ seconds.

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A practice race was conducted in the camp. Tuffy took 20 seconds to finish the race. Luke took twice the time taken by Tuffy. Toby took half the time taken by Tuffy. The difference between the time taken by Luke and Toby gives the time taken by Barry. What is the time taken by Barry?

A practice race was conducted in the camp. Tuffy took $20$ seconds to finish the race. Luke took twice the time taken by Tuffy. Toby took half the time taken by Tuffy. The difference between the time taken by Luke and Toby gives the time taken by Barry. What is the time taken by Barry?