Find the unit digit of product of the prime number up to 50 ?


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one question on: -=+,*=-,/=* etc then 10/5*45=?

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Age of Grandfather is the ages of 4 grandchildren where their ages are in consecutive.Find the age of Grandfather.

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12.05 x 5.4 ? 0.6 = ? (a) 105.55 (b) 108.45 (c) 118.45 (d) 118.55 (e) None of these

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