861: Assertion (A) :
Oral Rehydration Therapy (ORT) has been strongly recommended for reducing infant mortality
Reason (R) :
Gastrointestinal problems are very common among children especially in the developing countries
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
862: A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/s2. What will be its velocity after 3 seconds ?
(a) 9.8 m/s
(b) 19.6 m/s
(c) 29.4 m/s
(d) 39.2 m/s
863: Mouse is to cat as fly is to
(a) rat
(b) animal
(c) spider
(d) horse
864: Zero was invented by
(a) Aryabhata
(b) Varahamihira
(c) Bhaskara I
(d) an unknown Indian
865: Which of the following parties were established by Dr. B. R. Ambedkar?
1. The Peasants and Workers Party of India
2. All India Scheduled Castes Federation
3. The Independent Labour Party
Select the correct answer using the codes given below :
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3