1 . If in a triangle ABC, BE and CF are two medians perpendicular to each other and if AB = 19 cm and AC = 22 cm then the length of BC is
A.  19.5 cm
B.  13 cm
C.  20.5 cm
D.  26 cm
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2 . 20 men can do a piece of work in 18 days. They worked together for 3 days, then 5 men joined them. In how many more days is the work completed ?
A.  15
B.  14
C.  13
D.  12
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3 . The height of a triangle is increased by 10%. To retain the original area of the triangle, its corresponding base must be decreased by ?
A. 9$1\over8$%
B. 9$1\over7$%
C. 9$1\over11$%
D. 10%
A.  a
B.  b
C.  c
D.  d
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4 . 'O' is the circumcentre of triangle ABC. If ∠BAC = 50° then ∠OBC is
A.  100°
B.  40°
C.  130°
D.  50°
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5 . A man bought a watch at 25% discount on the original price. He got ` 40 more than the original price by selling it at 140% of the price at which he bought. The price of buying the watch was ?
A.  ` 600
B.  ` 900
C.  ` 800
D.  ` 700
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6 . Two circles of radii 10 cm and 8 cm intersect and the length of the common chord is 12 cm. Then the di stance between their centres is :—
A.  15
B.  8
C.  10
D.  13.3
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7 .
A.  50%
B.  40%
C.  75%
D.  25%
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8 . The approximate percentage increase in quantity from 1997 to 1998 was ?
A.  26.9%
B.  27.8%
C.  26.5%
D.  27.3%
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9 . The difference between the bags exported in 1999 and 2000 was ?
A.  15000000
B.  10000000
C.  20000000
D.  5000000
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10 . Value per bag was minimum in the year ?
A.  1999
B.  1996
C.  1997
D.  2001
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