SSC CGL Tier-2 2010 Maths

Instructions

For the following questions answer them individually

Question 71

Population of a town increases 2.5%annuallybut is decreasedby0.5%everyyear due to migration. What will be the percentage of increase in 2 years?

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Question 72

72% of the students of a certain class took Biology and 44% took Mathematics. If each student took at least one of Biology or Mathematics and 40 students took both of these subjects, the total number of students in the class is

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Question 73

Rs. 1050 are divided among A, B and C in such a way that the share of A is $$\frac{2}{5}$$ of the combined share of B and C. A will get

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Question 74

The sides of a right-angled triangle forming right angle are in the ratio 5 : 12. If the area of the triangle is 270 cm$$^2$$, then the length of the hypotenuse is

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Question 75

Two numbers are in the ratio 5 : 6. If their H.C.F is 4, then their L.C.M. will be

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Question 76

If $$a + b + c = 1$$ and $$ab + bc + ca = \frac{1}{3}$$ then $$a : b : c$$ is

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Question 77

A and B enter into partnership with capitals in the ratio 5 : 6. At the end of 8 months A withdraws his capital. They received profits in the ratio 5 : 9. B invested the capital for

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Question 78

What is the length of the radius of the circumcircle of the equilateral triangle, the length of whose side is $$6\sqrt{3}$$ cm ?

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Question 79

If the measure of a diagonal and the area of a rectangle are 25 cm and 168 cm$$^2$$ respectively, what is the length of the rectangle ?

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Question 80

The number of coins, each ofradius 0.75 cm and thickness 0.2 cm, to bemelted to make a right circular cylinder of height 8 cm and radius 3 cm, is

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