Mathematics (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 127 - 132 of 218

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Question number: 127

» Mathematics » Quadratic Equations

MCQ▾

Question

The roots of the equation x2+px+q=0 are 1 and 2. The roots of the equation qx2px+1=0 must be

Choices

Choice (4) Response

a.

12and1

b.

-12and1

c.

12and1

d.

None of the above

Question number: 128

» Mathematics » Basic Geometry

MCQ▾

Question

ABCD is a square of side a, ABO is an equilateral triangle and OL is perpendicular to CD. Then area of the trapezium AOLD is

The image is trapezoid with triangle and square

The Image Is Trapezoid With Triangle and Square

Find the area of trapezoid

Choices

Choice (4) Response

a.

a32+32a3

b.

a22+38a2

c.

a3+3a3

d.

a32+34a3

Question number: 129

» Mathematics » Rational Numbers

MCQ▾

Question

20 L of a mixture contains milk and water in the ratio 5: 3. If 4 L of this mixture are replaced by 4 L of milk, the ratio of milk to water in the new mixture will become

Choices

Choice (4) Response

a.

9: 7

b.

8: 3

c.

4: 6

d.

7 : 3

Question number: 130

» Mathematics » Quadratic Equations

MCQ▾

Question

A solid is hemispherical at the bottom and conical above. If the surface areas of the two parts are equal, then the ratio of its radius and the height of its conical part is

Choices

Choice (4) Response

a.

1:3

b.

1: sqrt (3)

c.

1:1

d.

None of the above

Question number: 131

» Mathematics » Statistics

MCQ▾

Question

The mean of a set of number is x. If each number is divided by 3, then the new mean is

Choices

Choice (4) Response

a.

x3

b.

x

c.

3x

d.

x + 3

Question number: 132

» Mathematics » Basic Geometry

MCQ▾

Question

In figure ABCD , if x=43y and y=38z , then find the value of x.

two parallel lines making a Trapezoid

Two Parallel Lines Making a Trapezoid

Find the value of angle by using given values

Choices

Choice (4) Response

a.

36°

b.

96°

c.

48°

d.

Question does not provide sufficient data or is vague

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