ABC26GN3198 · Ratio and Proportion

Subject: General Aptitude · Chapter: Ratio and Proportion · Exam: 2016 · Marks: · Difficulty:

Smita works in her office for 6 hours and Kajal works in her office for 7 hours 30 minutes. Find the ratio of their working hours.
(a)3 : 5
(b)4 : 5
(c)6 : 7
(d)5 : 4
Answer
Answer (as printed): B
Explanation
Working hours of Smita = 6 hours Working hours of Kajal = 7 hours 30 minutes = $1 \frac{1}{2}$ hours. $$\begin{aligned} \text { Required ratio } & =6: 7 \frac{1}{2}=6: \frac{15}{2} \\ & =12: 15=4: 5 \end{aligned}$$

Explanation as extracted from the printed page; notation may be imperfect.

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