Four points are on a line segment If AB : BC = 1 : 2 and BC : CD = 8 : 5 then AB : BD equals
A
4:13
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
1:13
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1:7
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
3:13
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A4:13 Given−A,B,C&Darecollinearpoints.AB:BC=1:2,BC:CD=8:5.Tofindout−AB:BD=?Solution−LetusassumeAB=xandBC=2xsinceAB:BC=1:2.NowBC:CD=8:5=2:54.∴BC=2xandCD=5x4.SoBD=BC+CD=2x+5x4=13x4.∴SoAB:BD=x:13x4=4x:13x=4:13.Ans−OptionA.