CBSE X Maths Set - 4

The form of is ____.

A)

B)

C)

D)

In the figure below, the curve represents a polynomial.

The number of zeroes of the polynomial is ____

A) 2

B) 1

C) 3

D) 4

David went to a stationery shop and purchased five pencils and two erasers for Rs 9. His friend Albert bought four pencils and six erasers of the same kind for Rs 18. If the cost of one pencil is Rs x and the cost of one eraser is Rs y, then the linear equations which represent the given information is ____.

A) 5x - 2y = 9 and 4x - 6y = 18

B) 5x + 2y = 9 and 4x - 6y = 18

C) 5x + 2y = 9 and 4x + 6y = 18

D) 5x + y = 9 and 4x + 6y = 18

The roots of the equation are ____.

A)

B)

C)

D)

If the nth term of the AP 9, 7, 5, ...is equal to the nth term of the AP 15, 12, 9, ...., then the value of n is ____.

A) 6

B) 4

C) 5

D) 7

In the figure below, ABC is a triangle in which and is a point on such that Then ____.

A) 1

B) 2

C) 3

D) 4

If the midpoint of the line joining and is then the values of and are____.

A)

B)

C)

D)

are acute angles, and . If , then the value of is____.

A) 30^{o}

B) 90^{o}

C) 45^{o}

D) 15^{o}

At the foot of a mountain the elevation of its summit is 45^{o}. After ascending 1000 m towards the mountain up a slope of 30^{o} inclination, the elevation is found to be 60^{o}. The height of the mountain is ____.

A) 1.366 km

B) 1.395 km

C) 1.654 km

D) 1.869 km

A circle touches the side BC of ΔABC at P and touches the sides AB and AC produced at Q and R respectively. If AB = 5.6 cm, BC = 4 cm and AC = 5 cm, then the length of the tangent AQ is____.

A) 7.1 cm

B) 7.2 cm

C) 7.3 cm

D) 7.4 cm