after 12 years manoj will be 3 times as old as he was 4 years ago. find its present age

 let present age=x

given

x+12=3(x-4)

so x becomes 12

MANOJ IS 12 YEARS OLD

LET THE PRESENT AGE OF MANOJ BE = x

------> x+12 = 3(x-4)

  x+12= 3x-12

  12+12 = 3x-x

  24 = 2x

  x = 12

thus the present age of manoj is 12 years

1.  raju is 19 yrs younger than his cousin. after 5 years, their ages will be in the ratio 2:3. find their present ages ????

i cant get this answer plsssssssssss solve it fast

a circular plot of ground of radius is 42m is surrounded by a circular ring of grss plot. find the width of a grass plot. if the area = that of the circular plot?

hai