3276: When ants bite, they inject

(a) glacial acetic acid
(b) methanol
(c) formic acid
(d) stearic acid
3277: In the series

AABABCABCDABCDE........

which letter occupies the 100th position?

(a) I
(b) K
(c) H
(d) J
3278: There are 20 students with an average height of 105 cms in a class. Then 10 students with an average height of 120 cms join the class. What will be the average height of the class now?

(a) 100 cms

(b) 110 cms

(c) 120 cms

(d) 130 cms
3279: Assertion (A)

Hiuen Tsang came to India during Harsha's rule

Reason (R)

His main objective was to visit the Buddhist shrines

(a) if A and R both are correct and R is the correct explanation of A

(b) if A and R both are correct but R is not the correct explanation of A

(c) if A is incorrect but R is correct

(d) if A is correct but R is incorrect
3280: AIDS is:

(1) Caused by virus

(2) Carried by body fluid, blood and serum

(3) Found mostly in males

(4) Found mostly in homosexuals

(a) 1 and 4 are correct

(b) 1,2 and 4 are correct

(c) 2 and 3 are correct

(d) 1, 2, 3 and 4 are correct