If x+y+z=1, $\frac{1}{x}$+$\frac{1}{y}$+$\frac{1}{z}$ =1 and xyz = -1, then $x^{3}$+$y^{3}$+$z^{3}$ is equal to
1). -1
2). 1
3). -2
4). 2
24 men can do a piece of work in 17 days.How many men will be able to do it in 51 days ?
1). 8
2). 10
3). 12
4). 6
A and B together can finish a work in 30 days. They worked for it for 20 days and then B left the work. The remaining work was done by A alone in 20
days more. In how many days can A alone finish the work?
1). 48 days
2). 50 days
3). 54 days
4). 60 days
20% of a man's salary is paid as rent, 60% are his living expenses and 10% are his savings. If he spends remaining 30Rs on the education of his
children, find his salary
1). 300
2). 900
3). 3000
4). 9000
A right circular conical structure stands on a circular base of 21m diameter and is 14m in height. The total cost of colour washing for its curved surface at
rs 6 per sq. m. is
(Take Π = 22/7 )
1). 4365
2). 4465
3). 3465
4). 3365