Subject: General Aptitude · Chapter: Time and Distance · Exam: · Marks: · Difficulty:
In covering a distance of 30 km, Abhay takes 2 hours more than Sameer. If Abhay doubles his speed, then he would take 1 hour less than Sameer. Abhay's speed is
(a)5 kmph
(b)6 kmph
(c)6.25 kmph
(d)7.5 kmph
Answer
Answer (as printed): A
Explanation
Let Abhay's speed be $x \mathrm{km} / \mathrm{hr}$. Then, $\frac{30}{x}-\frac{30}{2 x}=3 \Leftrightarrow 6 x=30 \Leftrightarrow x=5 \mathrm{km} / \mathrm{hr}$.