Q16. Answer with solution fast fast plzzzz......
Q.16. The angles of a triangle are in the ratio 2 : 6 : 7. The complement of the smallest angle of the triangle is
(1) 66$°$
(2) 24$°$
(3) 156$°$
(4) 78$°$

Dear student,

The answer is 24 degree
the steps are:
1. let the ratios be in terms of x i.e 2x + 6x + 7x = 180 degree ( angle sum property )
2. then by adding all the x terms the answer may be 15x = 180 degree
3. then by dividing 180 by 5 the answer will be 12
4. then by putting x value as 12 you may get 24, 72, 84 degrees respectively
5. now match the answer with your  options  in the options 24 is given 
6. hence the answer is 24

thankyou 
Hope this helps you a lot!!