Four fifth of a number is 10 more than two third of the number. The number is - 

A  55 

B  65 

C  75 

D  80 

Solution

Correct Answer: Option C

Solution:   Let, the number is x 

               ATQ, 4x/5 - 2x/3 = 10      => 12x - 10x /15 = 10    => 2x = 150     x = 75 

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