Class 8 Math revision

Q1. A brick has ______ vertices.

• 8

• 10

• 12

• 9

In his garden Tim plants a tomato seed 5¼ inches below the ground. After one month the tomato plant has grown a total of 11½ in. How many inches is the plant above the ground?
HINT: Find the difference.

• 16¾ inches
• 6½ inches
• 6¼ inches

Find −2¼−3⅞

• 1⅝
• −1⅝
• −6⅛

The temperature in a town is 34.1°F during the day and −8.6°F at night. Find the difference in the temperatures.

• 42.7
• 25.5
• 42.7°F
• 25.5°F

How would you express .005 as a fraction?

• 5/10
• 5/100
• 5/1,000
• 5/10,000

Which of the following is not a linear equation?

• 3x - 1 = -2x
• xy - 3 = x
• (x-5)⁄7 = (x-2)⁄3
• x + 2y = 10

If 2x + 4 = x - 5, then x = ______

• 9
• -9
• 1
• -1

Construct linear equation for the following statement:
Two numbers are in the ratio 5 : 7 and sum of the numbers is 120

• 5x + 7 x = 120
• 5x - 7x =120
• x⁄5 + x⁄7 = 120
• None of the above

The sum of the angles of a quadrilateral is _____

• 180⁰
• 270⁰
• 360⁰
• Not fixed

Which of the following statement is NOT TRUE?

• Parallelogram and Rectangles are irregular polygons
• A rectangle has all angles and all sides equal to each other
• A hexagon has 6 sides
• A regular octagon has 8 sides of equal length