426: Of the four forms of political protests mentioned below, which one is derived from the name of the person who used it as a political weapon for the first time ?
(a) Boycott
(b) Gherao
(c) Bandh
(d) Hartal
427: A quantity is found to vary in the order 9, 16, 25, 36, 49. What will be the next number in the order?
(a) 57
(b) 64
(c) 68
(d) 61
428: P, Q, R and S are four men. P is the oldest but not the poorest. R is the richest but not the oldest. Q is older than S but not than P or R. P is richer than Q but not than S. The four men can be ordered (descending) in respect of age and richness, respectively, as
(A) PQRS, RPSQ
(B) PRQS, RSQP
(C) PRSQ, RSPQ
(D) PRQS, RSPQ
429: Who amongst the following was the first to state that the Earth was spherical?
(a) Aristotle
(b) Copernicus
(c) Ptolemy
(d) Strabo
430: What is the average fat content of buffalo milk ?
(a) 7.2%
(b) 4.5%
(c) 9.0%
(d) 10.0%