1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

# A box contains balls of black, blue and green colours. If the ratio of black and blue balls is 5:6 and the ratio of blue and green balls is 3:5, then find the ratio of black and green balls.

A

3:2

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

1:3

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

2:1

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

1: 2

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

## The correct option is D 1: 2 Given ratio of black and blue balls is 5:6 ∴ let number of black balls = 5x and number of blue balls = 6x and ratio of blue and green balls is 3:5 ∴ let number of blue balls = 3y and number of green balls = 5y ∴ 6x = 3y (∵ Both of them are number of blue balls) ⇒ y = 2x--------(1) Now substituting y in 'number of green balls' we get number of green balls = 5y = 5×2x = 10x ∴ Number of black balls : number of green balls = 5x : 10x = 1 : 2

Suggest Corrections
1
Join BYJU'S Learning Program
Related Videos
Questions
MATHEMATICS
Watch in App
Join BYJU'S Learning Program