Q. 22

Multiply by

Answer :

Method:


There are two sides of a product.


Left Hand Side = Multiplicand – 1


Right Hand Side = Multiplier – Left Hand Side


So, Multiplicand × Multiplier = Multiplicand – 1/ Multiplier – Left Hand Side


9×(9+1)/.85×.15


=90/.1275


Ans: 90.1275


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