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Questions  >>  Olympiad-Math  >>  Class 7  >>  Simple Equations
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Rajesh is setting up a factory to manufacture files. If he buys a machine that costs Rs. 39150, then he can manufacture a file for Rs. 2. On the other hand, if he buys a machine that costs Rs. 26830, he can manufacture a file for Rs. 6.4. How many file should he make so that his total cost is the same no matter which machine he buys?


( A ) 2815
( B ) 2805
( C ) 2970
( D ) 2800

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