(11) The sum of two numbers is 42 and their product is 437. Then, the absolute difference between the number is
(a) 8
(b) 2
(c) 4
(d) 11
(12) A mixture contains milk and water in the ratio 5 : 1 . On adding 5 L of water, the ratio of milk and water becomes 5 : 2. What is the quantity of milk in the original mixture?
(a) 29 L
(b) 25 L
(c) 15.5 L
(d) 8.9 L
(13) In an examination, there were 640 boys and 360 girls, 60% of boys and 80% of girls were successful. The % of failure was
(a) 32.8 %
(b) 42.4 %
(c) 50 %
(d) 20.5 %
(14) 5 bells start tolling together and toll at intervals of 2, 4, 6, 8, and 10 s respectively. How many times do the five bells toll together in 20 min?
(a) 13
(b) 20
(c) 17
(d) 10
(15) Majority of excavations of ancient mounds have been :
(a) Horizontal
(b) Region – specific
(c) Culture – specific
(d) Vertical
(16) Which British official commented on the harshness and the corrupt character of the Indian police force in 1859?
(a) William Edwards
(b) Hardinge
(c) Charles Grant
(d) Macaulay
(17) The idea of Directive Principles had its origin in the constitutional proposals of the
(a) Tej Bahadur Sapru Committee
(b) C. R. Plan
(c) Hunter Committee
(d) Le Committee
(18) Which of the following countries occupies the first position among the coal producing countries of the world?
(a) Russia
(b) Germany
(c) U.S.A
(d) U.K
(19) Merino is the most important breed of
(a) Cow
(b) Sheep
(c) Goat
(d) Buffalo
(20) Which country has the largest production of cotton in the world?
(a) China
(b) U.S.A
(c) Canada
(d) Russia