100g is what percent of 1 kg?
10%
0.5%
20%
25%
None of these
1001000×100 = 10%
If 25% of x is equal to 40% of y, then 20% of x is equal to what percent of y?
√10×√15=?
(a)√25 (b)5√6 (c)6√5 (d) None of these