3091: Nine different letters are to be dropped in three different letter boxes. In how many different ways can this be done?
(a) 27
(b) 3^9
(c) 9^3
(d) 3^9 - 3
3092: A thief running at 8 km/hr is chased by a policeman whose speed is 10 km/hr. If the thief is 100 metres ahead of the policeman, then the time required for the policeman to catch the thief will be
(a) 2 minutes
(b) 6 minutes
(c) 10 minutes
(d) 3 minutes
3093: Which one of the following was an emigree Communist Journal of M.N. Roy?
(a) Kisan Sabha
(b) The Worker
(c) Vanguard
(d) Anushilan
3094: The length, breadth and height of a room are 1, b and h respectively. The perimeter of the ceiling expressed as a percentage of the total area of the four walls is
(a) 100 h
(b) 100/h
(c) h
(d) h/100
3095: A company marketing food products advertises that its items do not contain transfats. What does this campaign signify to the customers?
1. The food products are not made out of hydrogenated oils.
2. The food products are not made out of animal fats/ oils.
3. The oils used are not likely to damage the cardiovascular health of the consumers.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3