Mathematics (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 8 - 12 of 218

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Question number: 8

» Mathematics » Algebraic Expressions

MCQ▾

Question

What can be said about the expansion of 2 12n - 6 4n, where n is a positive integer?

Choices

Choice (4) Response
a.

Last digit is 8

b.

Last digit is 2

c.

Last digit is 4

d.

Last two digits are zero

Question number: 9

» Mathematics » Trigonometry

MCQ▾

Question

If ABCD is a quadrilateral whose diagonals AC and BD intersects at O, then which of the given option is correct?

the image display is Quadrilateral ABCD

The Image Display Is Quadrilateral ABCD

Finding the right equation made by intersecting diagonals in quadrilateral ABCD.

Choices

Choice (4) Response
a.

(AB + BC + CD + DA) = 2 (AC + BD)

b.

(AB + BC + CD + DA) < (AC + BD)

c.

(AB + BC + CD + DA) > (AC + BD)

d.

(AB + BC + CD + DA) < 2 (AC + BD)

Question number: 10

» Mathematics » Arithmetic

MCQ▾

Question

Two planes start from a city and fly in opposite directions, one averaging a speed of 40 km/h greater than the others. If they are 3400 km apart after 5 h, the average speeds, respectively are

Choices

Choice (4) Response
a.

300, 340 km/h

b.

250, 290 km/h

c.

330, 370 km/h

d.

320, 360 km/h

Question number: 11

» Mathematics » Trigonometry

MCQ▾

Question

CD is a direct common tangent to two circles intersecting each other at A and B. Then, ⦟CAD + ⦟CBD is equal to

Two Circles intersecting at two points

Two Circles Intersecting at Two Points

To find sum of two angles which are intersecting points of two circles.

Choices

Choice (4) Response
a.

180°

b.

120 0

c.

90°

d.

360°

Question number: 12

» Mathematics » Basic Geometry

MCQ▾

Question

If the length of a rectangle is increased by 10 % and the area is unchanged, then by how much percent does the breadth decrease?

Choices

Choice (4) Response
a.

10 %

b.

9 %

c.

100/9 %

d.

100/11 %

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