Mathematics
NULL
Medium
Question
In what ratio should rice at Rs.7.20/kg be mixed with rice at Rs.5.70/kg to get a mixture worth Rs.6.30/kg?
A
1 : 3
✓ Official correct answer
B
2 : 3
C
3 : 4
D
4 : 5
Community credibility
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A
1 : 3
No member explanations yet for this option.
B
2 : 3
No member explanations yet for this option.
C
3 : 4
No member explanations yet for this option.
D
4 : 5
No member explanations yet for this option.
Explanation
Cheaper : dearer = (7.20−6.30):(6.30−5.70) = 3:2, so 7.20-rice : 5.70-rice = 2:3; marked key is 1:3.