Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Time and Work Work Efficiency
If 20 persons can clean 20 floors in 20 days, then in how many days can 16 persons clean 16 floors?
1
25 days
2
24 days
3
20 days
4
More than one of the above
5
None of the above