40% of 16 + 16% of 40 + 8% of 80 + 80% of 8 + 4 % of 160 + 160% of 4 + 2% of 320 + 320% of 2 is equa

M4maths Previous Puzzles

26 Jun 2011 percentage

40% of 16 + 16% of 40 + 8% of 80 + 80% of 8 + 4 % of 160 + 160% of 4 + 2% of 320 + 320% of 2 is equal to

OPtion

1) 51.2
2) 50
3) 54.6
4) 51
5) 68
6) 68.4
7) 83
8) 81
9) 100
10) none of these

Solution

all are same
so
8* 40*16/100 = 51.2

Correct Option: 1 Best Solution (3)