Mathematics-Mensuration (NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension): Questions 8 - 9 of 9

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Question number: 8

» Mathematics » Mensuration

MCQ▾

Question

AD is a diameter of a circle. Two more circles pass through A and intersect AD in B and C respectively, such that AB and AC are diameters of these circles and AD > AC > AB. If the circumference of the middle circle is average of the circumference of the other two, then given AB = 4 units and CD = 2 units, what is the area, (in sq units) of the largest circle?

Choices

Choice (4) Response

a.

64 π

b.

16 π

c.

48 π

d.

128 π

Question number: 9

» Mathematics » Mensuration

MCQ▾

Question

If the length and breadth of a rectangular plot are increased by Equation and Equation respectively, then the new area is how many times the original area?

Choices

Choice (4) Response

a.

10

b.

Equation

c.

Equation

d.

Equation

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