It costs Rs. 15840 to paint the curved surface of a pillar which is 14m high. If the cost of painting is at the rate of Rs30 per m2, find i) Curved surface area of the pillar

ii) Radius of the base of the pillar

iii) Volume of concrete used for making the pillar

Atown recently dismissed 5 employees in order to meet their new budget reductions. the town had 5 employees over 50 years of age and 19 under 50. if the dismissed employees were selected at random, what is the probability that exactly 2 employees were over 50? express your answer as a fraction or a decimal number rounded to four decimal places.