M4maths Previous Puzzles

11 Jun 2020 Percentage

If 30% of x = y, then y% of 30 is the same as

OPtion

1) 81% of x
2) 8.1% of x
3) 3 of x
4) 30% of x
5) 9% of x
6) 90% of x
7) 18% of x
8) 1.8% of x
9) 27% of x
10) None of these

Solution

30% of x = y

=> (30/100) * a = b

y% of 30 =(y/100) x 30 = [(30x/100) / 100] x 30= 9x/100 = 9% of x.

Correct Option: 5 Best Solution (0)