3951: Four different candles, which can last for 5 hours, 4 hours. 3 hours and 2 hours of burning, respectively, are lit in a room at the same instant and allowed to burn till such time that the three candles in the room get extinguished. The cost of burning each one of these candles is 75 paise per hour. The cost involved is:
(a) Rs. 2.75
(b) Rs. 3.75
(c) Rs. 9.75
(d) Rs. 12.50
3952: The great Indian bustard is a/an:
(a) Animal
(b) Reptile
(c) Bird
(d) Mammal
3953: Which one of the following statements is correct ?
Fiscal Responsibility and Budget Management Act (FRBMA) concerns
(a) fiscal deficit only
(b) revenue deficit only
(c) both fiscal deficit and revenue deficit
(d) neither fiscal deficit nor revenue deficit
3954: Phenylketonuria is an example of an in born error of metabolism. This error refers to
(a) hormonal overproduction
(b) atrophy of endocrine glands
(c) inherited lack of an enzyme
(d) non-disjunction
3955: Water is filled in a container in such a manner that its volume doubles after every five minutes. If takes 30 minutes for the container to be full, in how much time will it be one-fourth full ?
(a) 7 minutes and 30 seconds
(b) 10 minutes
(c) 20 minutes
(d) 25 minutes