3786: In a school, out of 40 staff members, 30 are males. Some of the female teachers can sing while no male can sing. The principal invited six persons to a party by drawing lots. It was found that no member in the party could sing. Which of the following conclusions can be definitely drawn?
(a) Only males were invited to the party
(b) Some of the invitees were males and some were females who could not sing
(c) Only females, who could not sing, were invited to the party
(d) None of the above
3787: Why is a plant called Prosopis juliflora often mentioned in news ?
(a) Its extract is widely used in cosmetics.
(b) It tends to reduce the biodiversity in the area in which it grows.
(c) Its extract is used in the synthesis of pesticides.
(d) None of the above
3788: Which of the following tribes is not found in Central India?
(a) Todas
(b) Gonds
(c) Mundas
(d) Bhils
3789: The abolition of the I.A.S. and the I.P.S. has been recommended by the
(a) Dhebar Commission
(b) Kalekar Commission
(c) Kher Commission
(d) Rajamannar Commission
3790: A common currency for the members of the Common Market in Europe is known as
(a) Dollar
(b) Eurodollar
(c) Franc
(d) Pound