291: There are 10 identical coins and each one of them has H engraved on its one face and T engraved on its other face. These 10 coins are lying on a table and each one of them has H face as the upper face.
In one attempt, exactly four (neither more nor less) coins can be turned upside down. What is the minimum total number of attempts in which the T faces of all the 10 coins can be brought to be the upper faces ?
292: Consider the following pairs: Vitamin Deficiency disease
1. Vitamin C : Scurvy
2. Vitamin D : Rickets
3. Vitamin E : Night blindness
Which of the pairs given above is/are correctly matched?
(a) 1 and 2 only
(b) 3 only
(c) 1, 2 and 3
(d) None
293: Consider the following statements :
1. The Taxus tree naturally found in the Himalayas.
2. The Taxus tree is listed in the Red Data Book.
3. A drug called "taxol" is obtained from Taxus tree is effective against Parkinson's disease.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
294: Match:
List I (Geographical Feature)
A. Great Victoria Desert
B. Grand Canyon
C. Lake Winnipeg
D. Southern Alps
List II (Country)
1. Australia
2. Canada
3. New Zealand
4. USA
(a) 1 2 4 3
(b) 1 4 2 3
(c) 3 4 2 1
(d) 3 2 4 1
295: Assertion (A):
During the year 2001 - 02, the value of India's total exports declined, registering a negative growth of 2.17%.
Reason (R):
During the year 2001 - 02, negative growth in exports was witnessed in respect of iron and steel, coffee, textiles and marine products.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true