a) 80%
b) $$92\frac{6}{7}\% $$
c) 75%
d) $$84\frac{4}{5}\% $$
Answer: b
Explanation: Let the third number be 100. Then,
1st number = 130
2nd number = 140
% 1st number to the 2nd number
$$\eqalign{
& = \frac{{130 \times 100}}{{140}} \cr
& = \frac{{650}}{7} \cr
& = 92\frac{6}{7}\% \cr} $$
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