81) Mean of 10, 30, Y and 50 is 50. Y is?
(A) 90
(B) 95
(C) 100
(D) 110
82) Boy can type 1350 words in 30 minutes, how many he could type in 5 minutes?
(A) 225
(B) 235
(C) 50
(D) 60
83) Twelve men take 6 hours to finish a piece of work. After the 12 men have worked for 1 hour, the contractor decides to call in 8 more men. How many more hours woulld 20 men take to complete the remaining work?
(A) 2
(B) 3
(C) 4
(D) 5
84) If a car is sold Rs.500000 the profit is 17 per cent.What would be profit percentage if sold Rs.470000.
(A) 14.85%
(B) 15.98%
(C) 16.20%
(D) 14.50&
85) The number, whose 17% is 51, is:
(A) 200
(B) 100
(C) 300
(D) 210
86) A primary school had an enrollment of 850 pupils in January 1970 in January 1980 the enrollment was 1,120. What was the percentage increase for the enrollment?
(A) 31.76%
(B) 33.50%
(C) 30.65%
(D) 34.76%
87) Which is the greatest number?
(A) 1/4 of 236
(B) 1/16 of 1028
(C) 1/9 of 504
(D) 1/3 of 741
88) Shrimps are available in the market _______ they are good source of earning foreign exchange.
(A) because
(B) so
(C) while
(D) when
89) In absence of facts we can ________ about the real reason.
(A) Conclude
(B) Deduce
(C) Deduct
(D) Infer
90) He set two alarms so as to _______ that he woke up on time?
(A) Assure
(B) Reassure
(C) Ensure
(D) Confirm