Mathematics
NULL
Medium
Question
A shopkeeper earns 12% profit selling a book at 10% off the printed price. What is the ratio of cost price to printed price?
A
45 : 56
✓ Official correct answer
B
50:61
C
99:125
D
None of these
Community credibility
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A
45 : 56
No member explanations yet for this option.
B
50:61
No member explanations yet for this option.
C
99:125
No member explanations yet for this option.
D
None of these
No member explanations yet for this option.
Explanation
0.9 × PP = 1.12 × CP ⇒ CP : PP = 0.9 : 1.12 = 45 : 56.