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

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 â€“

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 30Â° and the angle of depression of its reflection is 60Â°. Then the height of the cloud above the surface of the lake is â€“

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 â€“

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 â€“

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 â€“

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 â€“

A. 20

B. 24

C. 30

D. 34