If x:y =2:3 then 5 (x-y) is :
A watch is brought when there was a special discount of 10% by paying Rs.810. Then the actual cost of the watch is :
If f (x) = 3 x 3 - 2 x 2 + x + k and f (-1) = 4 then k is :
Value of 2/3+5/3-1/3 is:
