Mathematics
NULL
Medium
Question
If 40% of the first number is added to the second, the second becomes five-fourths of itself. What is the ratio of first to second?
A
8 : 25
B
25 : 8
C
8 : 5
D
5 : 8
✓ Official correct answer
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A
8 : 25
No member explanations yet for this option.
B
25 : 8
No member explanations yet for this option.
C
8 : 5
No member explanations yet for this option.
D
5 : 8
No member explanations yet for this option.
Explanation
0.4 × first = 0.25 × second ⇒ first : second = 5 : 8.