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Question: A teacher asked four students to evaluate 5 × 104. Sunny answered 5000, Jeff answered 50000, Andy answered 500000, and William answered 5000000. Who among the four was correct?


A ) Andy
B ) William
C ) Jeff
D ) Sunny

Steps to derive

 [Evaluate power.]
1 5 x 104 = 5 x 10000

 [Multiply 5 and 10000.]
2 = 50000

3 So, Jeff is correct.



Hence the right answer is Option C

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