SOF - IMO PDF Sample Papers for Class 8

Q.1

Whole number such that twice of its square added to itself gives 10?

Q.2

If in the word 'DISTURBANCE', the first letter is interchanged with the last letter, the second letter is interchanged with the tenth letter and so on, which letter would come after the letter T in the newly formed word?

Q.3

How many diagonals have a regular hexagon?

Q.4

A geometric representation showing the relationship between a whole and its parts is a:

Q.5

(a + 2b)² - (a + 2b)(3a - 7b) by factorisation gives:

Q.6

A solid cube of each side 8 cm, has been painted red, blue and black on pairs of opposite faces. It is then cut into cubical blocks of each side 2 cm.

How many cubes have only two faces painted?

Q.7

What will be the length of third side of a right angled triangle whose hypotenuse is 5cm and one of the side is 3 cm?

Q.8

Select the figure which satisfies the same conditions of placement of the dots as in fig. (X).

Q.9

A man sold 250 chairs and had a gain equal to selling price of 50 chairs. His profit percent is:

Q.10

The length of the arc of a sector of a circle is 17 cm and the area of the sector is 136 cm². Calculate the radius of the circle.