can someone please explain how the oa is a,
if number =122 ,then 122+9 =131,tens digit is 3
if number =130, then 130+9=139 ,tens digit is 3 ,hence we have 2 different values of k ,2 and 3..did i mis u nderstood the question ?

using statement b ONLY,

let # of male employees =m
# of female employees = f
9.8 m +9.1 f = 9.3(m+f)
0.5 m = 0.2 f
m/f =2/5 ratio know ,so why is the answer not B.

I agree with the method,i am getting answer as 79/160.

can someone please elaborate with example what does by mean "moving decimal point one place to the left"?

Brooks,
can you please post the question?The above description does not match with the question #115 og 11 ,page 167

Thanks.

semi annual ,does that not mean its a compound interest scenario and not simple interest ,what are the answer choices please

is the answer c?