ESE ECE Prelims
UPSC ESE/IES Prelims — Electronics & Telecommunication Engineering
Engineering AptitudeEnglish
Exam overviewPractice session
A and B can complete a piece of work in 12 days, B and C in 15 days, and C and A in 20 days. If A, B, and C work together, in how many days will they complete the same work?
Loading your practice session…