Mathematics
NULL
Medium
Question
X and Y are respectively 20% and 28% less than Z. By what percent is Y less than X?
A
0.08
B
0.09
C
0.1
✓ Official correct answer
D
0.11
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
0.08
No member explanations yet for this option.
B
0.09
No member explanations yet for this option.
C
0.1
No member explanations yet for this option.
D
0.11
No member explanations yet for this option.
Explanation
Y/X = 0.72/0.8 = 0.9 ⇒ Y is 10% less than X (option 0.1).