The avg price of stock portfolio increased by 2%
ie total rise in value 2% (20+35+40+45+70) = 4.2
also the increase in 15% minus dectrease in 35% should be 4.2
so looking at options taking what remains from the options to calculate
A 15% of 45 - 35% of 40 is not equal to 4.2 is infact negative
B 15% of 40 - 35% of 35 is not equal to 4.2 is infact negative
C 15% of 70 - 35% of 45 is not equal to 4.2 is infact negative
D 15% of 45 - 35% of 20 is not equal to 4.2 is infact negative
E 15% of 70 - 35% of 20 is 10.5 - 7 is closer to the ans
It seems to be E though i am not sure
