Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Mensuration Solid Figures
The radius and height of a right circular cylinder are r (in m) and the radius of the hemisphere is also equal to r (in m). A right circular cylinder is surmounted in a solid hemisphere on its base. If the cost of painting is ₹2 per m2 and the total cost of painting the compound object is ₹1540, then find the height of the right circular cylinder. (Take π = \(\frac{22}{7}\))
1
7 m
2
14 m
3
28 m
4
More than one of the above
5
None of the above