Two numbers are in the ratio $7:9$ and differ by $18$. The larger number is:
Practice this question from Chapter Mock 2: Ratio, Proportion and Partnership, with options and an explanation.
Question
Two numbers are in the ratio $7:9$ and differ by $18$. The larger number is:
Option A
63
Option B
72
Option C — Correct answer
81
Correct choice.
Option D
90
Explanation
Difference of ratio parts $=2$. One part $=18\div2=9$. Larger number $=9\times9=81$.