railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Quantitative Aptitude Mensuration Solid Figures
In a camp, there are tents of the same shape and size. Each tent is cylindrical up to a height of 4 m and conical above it. The diameters of the bases of the cylinder and the cone are both 10.5 m and the slant height of the conical part is 10 m. If a total of 3861 m2 canvas is used in making all the tents, then how many tents are there in the camp? [Use π = \(\frac{{22}}{7}\)]
1
11
2
7
3
19
4
13