ngsfindia.org National Genius Search Main & Advanced Exam Class VIII Sample Question Paper

Organisation : National Genius Search Foundation
Exam : NGSE – Main & Advanced Exam
Document Type : Sample Question Papers
Class : VIII

Website : http://ngsfindia.org/ngse.php
Download Model Question Paper :
NGSE Main Class VIII : https://www.pdfquestion.in/uploads/9059-mainVIII.pdf
NGSE Advanced Class VIII : https://www.pdfquestion.in/uploads/9059-AdvancedVIII.pdf

NGSE Main & Advanced Exam Class VIII Sample Question Paper :

National Genius Search Examination : Mains :
Class : VIII
Time : 90 Minutes

Related : NGSE Main & Advanced Exam Class VII Sample Question Paper : www.pdfquestion.in/9056.html

Section 1 – Mathematics :
Important Note :
** Read the questions carefully and comprehend them correctly before you answer.
** Questions from 1 to 45 have one or more options right.
** To score full marks for each question, bubbles for all the right answer options should be shaded.
** Shading one or more wrong bubble/s make the answer wrong.
** No marks are given for partial answers.

01. Tony approached Wisden with the homework given by his teacher. It reads as follows Choose the right statements from the options given
(a) Every natural number is a whole number
(b) Every whole number is a natural number
(c) Every integer is a rational number
(d) Every fraction is a rational number
What right answer options would Wisden suggest? Shade the right option

02. Which of the following is not a property of rational numbers?
(a) Closure property of addition
(b) Commutative property of subtraction
(c) Associative property of addition
(d) Property of additive inverse

03. One of the student in Vidya’s class could not solve the following as she went wrong at one of the steps
There are steps marked (a), (b,) (c) and (d). Exactly at which step she went wrong?

04. Quana doubled a number and added the same number to the result. Then she has subtracted 15 from it. The result was 33. Choose the correct algebraic representation to help her.
(a) 3x- 15 =33
(b) 2x + 15 = 33
(c) (x+x) + 15 = 33
(d) 3x= 33-15

05. Wisden gave 4 values 12.5%, 25%, 50% and 100% to Richa and asked her to find the equivalents from the following set of answers. Shade the option/s which are correct.
(a) 1 : 8, 1 : 4, 1 : 2, 100 : 100
(b) 0.125, 0.25, 0.50, 0.1
(c) 1 : 8, 1 : 4, 1 : 2, 1 : 1
(d) 0.125, 0.25, 0.50, 1.00

06. Quana asked Vidya: “In order to find the cube root of a perfect cube by factors, can we follow the following procedure?”
(a) Obtain the given number
(b) Resolve it into prime factors.
(c) Group the factors in triples such that all the three factors in each triple are equal
(d) Find the product of factors obtained in step
(e) This product is the required cube root.
Vidya said that one of the above steps is wrong. Which step is wrong?

07. Wisden bought a toy car where shopkeeper made a profit of 12%. Had it been sold to Wisden for Rs 33 more, the gain would have been 14%. What is the cost price of the toy car?
(a) Rs. 1450
(b) Rs. 1650
(c) Rs. 1760
(d) Rs. 2070

08. The population of Wisden’s ancestral town was 160000 three years ago. It had increased by 3%, 2.5% and 5% in the last three years. Can you tell us what is the present population of that town?
(a) 177366
(b) 199388
(c) 222378
(d) 331254

09. A train travelling at 45 kmph crosses a signal post in 22 seconds. It passes the platform in 42 seconds. What is the length of the platform?
(a) 525 m
(b) 250 m
(c) 275 m
(d) 145 m

National Genius Search Examination : Advanced
SECTION – 1: MATHEMATICS
1. The following are the two questions asked for an examination of class 6 last year.
(a) Evaluate: 3-{2-3(2-7)}
(b) Simplify: -3x{7-(3x-5)}
We would like to know how ‘Evaluate’ differs from ‘Simplify’? What do these words mean? Use the above to explain your points.

2. On a particular day, the sales (in rupees) of different items of a baker’s shop are given below.
Ordinary bread – 320
Fruit bread – 80
Cakes and pastries – 160
Biscuits – 120
Others – 40
Total – 720
Draw a pie chart for this data

3. Frame a question on inverse proportion for water pumped from an underground water tank to an overhead water tank of identical shape. Explain how to solve the question you have framed.
4. Vidya wonders why numbers one and zero are neither composite numbers nor prime numbers. Could you please explain to Vidya what can happen if they were either composite numbers or prime numbers? Use an example to punch your points.

5. Without knowing the height and which sides are parallel, how would you find the area of a trapezium if all sides are given as 1m, 2m, 3m, and 4m? You need to explain the steps you take to solve the question. You need not find the numerical answer.

Section 2: Science
6. The table below shows the data on likely heights of boys and girls as they grow in age. Draw graphs showing height and age for both boys and girls. What conclusions can be drawn from these graphs?

7. When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to
(a) pressure of water (b) gravity of the earth
(c) shape of rubber bulb (d) atmosphere pressure
(i) Is option (a) right? In not, what change in the question can make option
(a) right?
(ii) Is option (b) right? In not, what change in the question can make option
(b) right?
(iii) Is option (c) right? In not, what change in the question can make option
(c) right?
(iv) Is option (d) right? In not, what change in the question can make option
(d) right?

8. Rainbow is a natural phenomenon showing dispersion.
(a) What is dispersion?
(b) How to create an artificial rainbow in your garden?
(c) Give a simple experiment that can create dispersion of light inside your room

9. Vidya’s Text book says – Like many other scales in science, Richter scale is notlinear. This means that an earthquake of magnitude 6 does not have one and half times the destructive energy of an earthquake of magnitude 4. In fact, an increase of 2 in magnitude means 1000 times more destructive energy. Therefore, an earthquake of magnitude 6 has thousand times more destructive energy than an earthquake of magnitude 4.

10. (a) What are antibiotics? How it differs from antibodies?
(b) Is it possible to develop a bacteria that can eat up plastic waste? Discuss the advantages, disadvantages and threats if we are successful in developing such a bacteria.