1 .The quantity of water that should be added to reduce 18 ml lotion containing 50% alcohol to the lotion containing 30% alcohol is–
A.  6 ml
B.  8 ml
C.  10 ml
D.  12 ml
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2 .The length of a rectangle is increased by 40%. By what percent the width of the rectangle have to be decreased to maintain the same area?
A.  26.27%
B.  28.57%
C.  26.57%
D.  28.27%
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3 .Which is the greatest in $6\sqrt{4}$, $5\sqrt{5}$, $6\sqrt{6}$, $3\sqrt{2}$ is-
A.$6\sqrt{4}$
B.$5\sqrt{5}$
C.$6\sqrt{6}$
D.$3\sqrt 2$
A.  a
B.  b
C.  c
D.  d
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4 .By selling a watch at a profit of 60% a man got ` 38 more than one third of its cost price. What is the cost price of watch?
A.  ` 30
B.  ` 45
C.  ` 40
D.  ` 60
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5 .A man whose bowling average is 12.4 takes 6 wickets for 36 runs and there by decrease his average by 0.4. The number of wickets taken by him before his last match is –
A.  98
B.  89
C.  72
D.  90
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6 .The average age of 11 players of a cricket team is decreased by 3 months when two of them aged 17 years and 20 years are replaced by two new players. The average age of the new players is–
A.  17 years 1 month 15 days
B.  17 years 3 months
C.  16 years 11 months 3 days
D.  15 years 9 months
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7 .The value of $sin 39º\over cos 51º$ + 2tan11º tan31º tan45º .tan59º .tan79º – 3 (sin 2 21º + sin 2 69º) is –
A.  2
B.  1
C.  -1
D.  0
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8 .A polygon has 44 diagonals. The number of sides of the polygon is–
A.  9
B.  11
C.  10
D.  12
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9 .
A.  70º
B.  45º
C.  60º
D.  75º
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10 .The perimeter of a rhombus is 80 cm and the measure of one of its angle is 60º, then its area will be–
A. $100\sqrt3$ $cm^2$
B. $200\sqrt3$ $cm^2$
C. $50\sqrt3$ $cm^2$
D. $150\sqrt3$ $cm^2$
A.  a
B.  b
C.  c
D.  d
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