1.  If increasing 20 by P percentage gives the same result as decreasing 60 by P percentage, what is P percentage of 70?
A. 50
B. 140
C. 14
D. 35

Answer: Option D

Explanation:

According to the question,

= (100 + P) x 20 = (100 - P) x 60
100 100

(100 + P) = (100 - P) x 3

P + 3P = 300 - 100

 P = (200/4)% = 50%

Then, 50% of 70 = 50 x 70   = 35.
100