defence exam CISF Head Constable Ministerial (HCM) & ASI Steno Mock Test Series Quantitative Aptitude Mensuration Solid Figures
A cylindrical pillar is 75 cm in diameter and 5.6 m in height. The cost of painting the curved surface of the pillar at the rate of Rs. 15 per m2 is:
(take π = \({ {22} \over 7}\))
1
Rs. 198
2
Rs. 195
3
Rs. 180
4
Rs. 188