1. Home
  2. / Forum

User Forum

Ask Your Question
Asmi Raniga from Indian School Ghubra, Muscat
Subject :IMO    Class : Class 8

A can do a work in 9 days. If B is 50% more efficient than A, then in how many days can B do the same work ? 


A 13.5
B 4.5
C 6
D 5



answer is C. it has been proved in other sites as well....one day's work of A=1/9one day's work of B= 1/9 x 150/100 1/9 x 3/2 =1/6 work is completed in 6 days by B.

Ans 1:

Asmi Raniga from Indian School Ghubra, Muscat
Class : Class 8
answer is coming as B in site

Ans 2:

Anidroid ,Aniruddha from Modern DPS, Faridabad
Class : Class 8
6

Ans 3:

Admin from SOF, Noida
Class : Class 10
Answer:C

Solution
Work done by A in 1 day = 1/9
Work done by B in 1 day = 1/9 + 50% of 1/9 = 3/18 = 1/6
Days needed by B to complete the work = 6 days

Ans 4:

Omayr from Army Public School Yol Cantt, Dharamshala
Class : Class 8

Post Your Answer