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SSC CGL Tier 1 :: QA Test 21
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SSC CGL Tier 1 Quantitative Aptitude Questions and Answers Free Online Mock Test 21

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1 . Three numbers are in the ratio 1 : 2 : 3. By adding 5 to each of them, the new numbers are in the ratio 2 : 3 : 4. The numbers are –
A.  15, 30, 45 B.    1, 2, 3
C.  5, 10, 15 D.    10, 20, 30
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2 . The angle of elevation of a cloud from a point h meters above the surf ace of a lake i s 30° and the angle of depression of its reflection is 60°. Then the height of the cloud above the surface of the lake is –
A.  h $\sqrt3$ m B.    h m
C.  h $\sqrt2$ m D.    2 h m
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3 . The product of two numbers is 24 times the difference of these two numbers. If the sum of these numbers is 14, find the larger number
A.  4 B.    6
C.  8 D.    9
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4 .
A.  D B.    E
C.  A D.    G
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5 . What percent of students from institute D have come out to be successful out of the total enrolled from this institute ?
A.  115 B.    95
C.  80 D.    85
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6 . What i s t he approxi mate perc entage of students successful to enrolled from institute A ?
A.  72 B.    76
C.  86 D.    96
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7 . The HCF of 0.54, 1.8 and 7.2 is –
A.  1.8 B.    0.18
C.  0.018 D.    18
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8 . A student bought 4 books for ` 120 from one book shop and 6 books for ` 150 from another. The average price (in rupees) was –
A.  ` 27 B.    ` 27.50
C.  ` 135 D.    ` 138
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9 . A and B invest in a business in the ratio 3 : 2. If 5% of the total profit goes to charity and A's share is ` 855, the total profit (in rupees) is –
A.  1425 B.    1500
C.  1537.50 D.    1576
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10 . The radi i of two concentric circles are 17 cm and 10 cm respectively. A straight line ABCD intersects the larger circle at the point A and D and intersects the smaller circle at the point B and C. If BC = 12 cm, then the length of AD (in cm) is –
A.  20 B.    24
C.  30 D.    34
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