state gov APPSC (ఆంధ్రప్రదేశ్) Group 2 (Pre + Mains) Mock Test 2023 Quantitative Aptitude Time and Work Work Efficiency
Mahesh and Krishna are engaged to do a work. Mahesh working alone takes 8 hours more to complete the job than if both worked together. If Krishna worked alone, he would need \(4\frac{1}{2}\) hours more to complete the job than if they both worked together. How much time would they both take to do the work together ?
1
7⋅4 hours
2
5 hours
3
5.3 hours
4
6 hours