RRB NTPC Algebra and Geometry 3

Question 1

If 5x - 3y = 11 and 3x + 2y = 7, what is the value of x?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 2

The diagonal of a rectangle is 10 cm and its length is 8 cm. What is its breadth?

Accepted Answer

6 cm

Answer

4 cm

Answer

5 cm

Answer

7 cm

Question 3

If (x + 2)(x - 3) = 0, what are the values of x?

Accepted Answer

x = -2 or x = 3

Answer

x = 2 or x = 3

Answer

x = 2 or x = -3

Answer

x = -2 or x = -3

Question 4

The total surface area of a cylinder with radius 7 cm and height 10 cm is: (Use π = 22/7)

Accepted Answer

748 cm²

Answer

594 cm²

Answer

836 cm²

Answer

924 cm²

Question 5

If the roots of a quadratic equation are 3 and -5, what is the equation?

Accepted Answer

x² + 2x - 15 = 0

Answer

x² - 2x - 15 = 0

Answer

x² - 2x + 15 = 0

Answer

x² + 8x + 15 = 0

Question 6

In a triangle, if two sides are 7 cm and 9 cm and the included angle is 90°, what is the hypotenuse?

Accepted Answer

√130 cm

Answer

√58 cm

Answer

√116 cm

Answer

12 cm