A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M. while machine P is closed at 11 A.M. and the remaining two machines complete work. Approximately at what time will the work (to print one lakh books) be finished ?
A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it?
The government should ________ with the industry about what would be a _________ price for certain essential drugs.
a) negotiate, reasonable
b) deal, transparent
c) appeal, negotiable
d) raise, genuine
e) refrain, uniform
The ratio between the radius and height of a cone is 3:4. What is the curved surface area of the
cone?
1) 15p m2
2) 12p m2
3) 9p m2
4) Data inadequate
5) None of these
A person has Rs 2. He wins or loses Re 1 at a time If he wins he gets Re 1 and if he loses the game he loses Re 1.He can loose only 5 times. He is out of the game if he earns Rs 5. Find the number of ways in which this is possible?
Two varieties of wheat each of price Rs. 50/kg and Rs. 60/kg are mixed in the ratio of 2 : 3 respectively. What must be cost price of the mixture to get a profit of 10%?