CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

A man travels the first part of his journey at 20 km/hr and the next at 70 km/h, covering the entire journey at an average speed of 50km/h. What is the ratio of the distance that the covered at 20 km/h to that he covered at 70km/h?

A
4:21
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
3:22
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1:4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
3:5
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is D 4:21
Let X be the distance traveled in first part and Y be the distance traveled in the second part.
Now,
X/20 + Y/70 = (X+Y)/50
(7X+2Y)/140 = (X+Y)/50
350X+100Y=140X+140Y
210X = 40Y
Now,
X/Y=40/210
X:Y=4:21

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Ratio and Proportion
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon