3241: The following table shows the percentage change in the consumption of electricity by five towns P, Q, R, S, T from 1986 to 1988 :
If town T consumed 500,000 units in 1986, how much did it consume in 1988 ?
(a) 371,000 units
(b) 531,100 units
(c) 551,100 units
(d) 571,100 units
3242: "Lathyrism" is a crippling disease caused by:
(a) Tinned fish
(b) Chick pea and pulses
(c) Meat
(d) Adulterated oil
3243: Deserts such as the Sahara are generally found between 20° and 30° latitudes in the western parts of the continents. This is because these regions
(a) Have off-shore winds throughout the year
(b) Have warm off-shore currents
(c) Lie in the belt of the doldrums
(d) Are very hot throughout the year
3244: In a group of persons travelling in a bus, 6 persons can speak Tamil, 15 can speak Hindi and 6 can speak Gujarati. In that group none can speak any other language. If 2 persons in the group can speak two languages and one person can speak all the three languages, then how many persons are there in the group ?
(a) 21
(b) 22
(c) 23
(d) 24
3245: Examine the following statements regarding a set of balls :
I. All balls are black.
II. All balls are white.
III. Only some balls are black.
IV. No balls are black.
Assuming that the balls can only be black or white, which two statements given above can both be true, but cannot both be false ? Choose the correct answer from the codes given below :
Codes :
(a) I and IV
(b) I and III
(c) II and III
(d) III and IV