regulatoryBody RBI Security Guard Mock Test Quantitative Aptitude Ratio and Proportion Direct or Indirect Proportion
A school has 6 periods a day, each of 60 minutes duration. How long would each period be, if the school has 9 periods a day, assuming the number of school hours to be the same?
1
40 minutes
2
50 minutes
3
42 minutes
4
45 minutes
5
None of these