Equation challenge Quiz

Question Number 1 [A(1+b/100)^3=2916]/[A(1+b/100)^1=2304] find value of 'b'. A. 23 B. 23/2 C. 22/3 D. 25/2 E. 21 F. 24/5 Question Number 2 [A(1+b/100)^3=2916]/[A(1+b/100)^1=2304] find value of 'b'. A. 23 B. 23/2 C. 22/3 D. 25/2 E. 21 F. 24/5 Question Number 3 Half of a herd of deer are grazing in the field and three fourth of the remaining are playing nearby. The rest 9 are drinking water from the pond. Find the number of deer in the herd. A. 80 B. 75 C. 72 D. 82 E. 71 F. 79