NSO Level 1- Science Olympiad (SOF) Class 8: Questions 36 - 39 of 1076

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Question number: 36

» Mental Ability

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MCQ▾

Question

Start with the number X. Double it and then add 6. If the result is , the value of X is ________?

Choices

Choice (4) Response

a.

15

b.

5

c.

3

d.

2

Question number: 37

» Mental Ability

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MCQ▾

Question

A milkman mixed 2 litres of water for every 3 litres of milk and thus prepared a mixture of milk and water of 30 litres. If he finally adds 12 litres of pure milk to the mixture, find the ratio of milk and water in the mixture.

Choices

Choice (4) Response

a.

6: 7

b.

4: 5

c.

5: 2

d.

7: 3

Question number: 38

» Mental Ability

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MCQ▾

Question

Which of the following statement is true?

Choices

Choice (4) Response

a.

The centroid of an acute angled triangle always lies in the inside the triangle

b.

The orthocenter of an obtuse angled triangle is the outside of the triangle

c.

The circumcentre of an acute angled triangle is lies in the interior of the triangle.

d.

All a. , b. and c. are correct

Question number: 39

» Mental Ability

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MCQ▾

Question

In the diagram, ABCD and DEFG are rectangles. What is the area of the shaded region in ?

Hexagon poly1 Hexagon poly1: Polygon D, H, B, C, F, G Angle α Angle α: Angle between G, D, G’ Angle α Angle α: Angle between G, D, G’ Angle β Angle β: Angle between E, F, E’ Angle β Angle β: Angle between E, F, E’ Angle γ Angle γ: Angle between C, A, C’ Angle γ Angle γ: Angle between C, A, C’ Segment c Segment c: Segment [A, B] of Triangle t1 Segment a Segment a: Segment [B, C] of Triangle t1 Segment b Segment b: Segment [C, A] of Triangle t1 Segment d Segment d: Segment [D, E] of Quadrilateral q1 Segment e Segment e: Segment [E, F] of Quadrilateral q1 Segment f Segment f: Segment [F, G] of Quadrilateral q1 Segment g Segment g: Segment [G, D] of Quadrilateral q1 Segment d_1 Segment d_1: Segment [D, H] of Hexagon poly1 Segment h Segment h: Segment [H, B] of Hexagon poly1 Segment b_1 Segment b_1: Segment [B, C] of Hexagon poly1 Segment c_1 Segment c_1: Segment [C, F] of Hexagon poly1 Segment f_1 Segment f_1: Segment [F, G] of Hexagon poly1 Segment g_1 Segment g_1: Segment [G, D] of Hexagon poly1 A text1 = “A” B text2 = “B” C text3 = “C” D text4 = “D” E text5 = “E” F text6 = “F” G text7 = “G” H text8 = “H” 7 cm text9 = “7 cm” 3 cm text10 = “3 cm” (r 2) cm text11 = “ (r 2) cm” 3 cm text12 = “3 cm” r cm text13 = “r cm” 5 cm text14 = “5 cm”

Find the Area of Shaded Region

Showing image of find the area of shaded region

Choices

Choice (4) Response

a.

b.

c.

d.

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