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Verified Answer :

FrederickDaApple

first, divide 30 by 2, then times that by 20. Or,  you could times 30 by 10

totallynotbroke

30 divide by 2 = 15 so thats how we know that sam can solve 15 questions in 1 minute. Now, in order to find how many can be solved in 20 minutes we simply multiply 15 and 20:


15 x 20 = 300.


Sam can solve 300 questions in 20 minutes.

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