Subject: General Aptitude · Chapter: Time and Distance · Exam: 2016 · Marks: · Difficulty:
Aryan covers a certain distance in 1 hour 30 minutes. He covers two thirds of it at the rate of 4 kmph and remaining distance at the rate of 5 kmph. Find the total distance.
(a)6.5 km
(b)6.6 km
(c)6.3 km
(d)6.4 km
Answer
Answer (as printed): D
Explanation
According to given information 2x 3 +3=3 4 5 2 2x x 3 ⇒ + = 12 15 2 x x 3 ⇒ + = 6 15 2 5x + 2x 3 ⇒ = 30 2 7x 3 ⇒ = 30 2 ⇒ 14x = 90 90 ⇒ x= = 6.4 km. 14
Explanation as extracted from the printed page; notation may be imperfect.