331: A wooden block is floating in water. If 4/5 of its volume is immersed in water and volume of the water displaced is 800 ml, the volume of the block is

(a) 1140 ml

(b) 200 ml

(c) 800 ml

(d) 1000 ml
332: Recently Uttar Pradesh and Madhya Pradesh governments signed a Memorandum of Understanding for the linking of two rivers as a link project. Which are these two rivers?

(a) Betwa and Chambal
(b) Betwa and Ken
(c) Chambal and Son
(d) Ken and Narmada
333: The human immuno deficiency virus (HIV) is a living entity because it can

(a) Excrete in human serum

(b) Disturb host cell respiration

(c) Undergo auto-reproduction

(d) Move from one cell to another
334: Consider the following statements:

1. 'Bijak' is a composition of the teachings of Saint Dadu Dayal.
2. The Philosophy of Pushti Marg was propounded by Madhvacharya.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
335: Solve the given equations :
x2 + y2 = 34
x4 - y4 = 544
The values of x and y are
(a) ± 4, ± 3
(b) ± 5, ± 3
(c) ±3, ±5
(d) ±3, ±4