defence exam Agniveer Navy MR Mock Test Series 2025 Quantitative Aptitude Time and Work Work Efficiency
Efficiency ratio of A and B is 2 : 3 and efficiency ratio of B and C is 4 : 5. If C alone can complete a work in 7 days, then find in how many days A, B and C together complete the work?
1
2 days
2
1 days
3
5 days
4
3 days