Math Quiz Grades 7 & 8 by Alina K

SREETHI SREENU, VIII C

2013-10-01 14:56:13 UTC

1. Let the number of coins be x .

x/2 - 2 = x/3

Multiply by 6 to remove the fractions.

3x-12 = 2x

x = 12

2.Application

3. Fibonacci

4. Sneha Jayaprakash and Indronail Kanungo

5. ( 220,284 )

6. Next year Mr Agr will be 2 year older than last year.

We need to find a cube which is greater than the square by 2 numbers.

Square - 25 years ( last year )

Cube - 27 years ( next year )

Now, Mr Agr is 26 years old.

7. 14.8 times

8. Bhaskara

9.64 squares

10. It is a Pythagorean Tree. Pythagorean tree represents Pythagorean Theorem

in the form of a fractal tree design.

sajna_s_ois — 2013-10-01 14:59:51 UTC

Aliza N.K 7B

2013-10-01 15:30:41 UTC

1. FIRST 6 OF THEM WERE TAILS UP THEN 4 OF THEM WERE TAILS UP. TOTAL COINS= 12

2. A plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the cone or by the locus of points equidistant from a fixed line and a fixed point not on the line.

3. LEONARDO DA VINCI

4. SNEHA JAYAPRAKASH & INDRONAIL KUNUNGO

5. (220, 284)

6. LAST YEAR MY AGE WAS 25 YEARS, THIS YEAR IT IS 26 YEARS & NEXT YEAR IT WILL BE 27 YEARS.

7. 14.8 TIMES

8. BHASKARA

9. 64 SQUARES

10. PYTHAGOREAN TREE

Anusree Govind of 8.D

2013-10-01 17:42:16 UTC

1. Let the no. of coins=x

x/2-2=x/3

x-4=2x/3

(x-4)3=2x

3x-12=2x

3x-2x=12

x=12

Therefore, there are 12 coins.

2. An arch-like curve is a parabola.

3. Leonardo di ser Piero da Vinci(Leonardo Da Vinci) was known as 'ten men in one'.

4. Indroneil Kanungo was awarded the title ‘Maha Math Genius–2013-14’ for Grade 12. Sneha Jayprakash bagged the runner-up title for ‘Maha Math Genius–2013-14’ for grade 10.

5. Amicable numbers are two different numbers so related that the sum of the proper divisors of each is equal to the other number. The smallest pair is 220 and 284.

6. 26 years

7. The stellar black hole which is nearest to our sun is Cygnus X-1. It is 14.8 times the mass of our sun.

8. Bhaskara II

9. 64 squares on a standard chess board.

10. Pythagoras Tree is a shape made of the same symmetric and asymmetric shapes... This tree is made of squares. It is one of the most common variations of the Pythagoras tree.

Nisha

2013-10-02 08:39:43 UTC

Q3. Leornado da Vinci

Q7. 14.8 Times

Q10. Pythagorian tree

Q9. 204

Atharva 7-D

2013-10-02 08:50:26 UTC

Q7 14.8 times

Q9 204 squars

Q10 pythagorean tree, it represents the

pythagoras theorem in the form of a tree

design.

Q19 leornado da vinci

Q8 Bhaskara

Q5 220, 284

Arpitha Anil 7-D

2013-10-02 11:36:05 UTC

1.12 coins

2.Parabola is a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the cone or by the locus of points equidistant from a fixed line and a fixed point not on the line.

3.Leonardo Da Vinci

5.220 and 284

6.26 years

7.14.8 times the sun

8.Bhaskara

9.64 squares or in total including allpossible squares there can be 204 squares.

10.It is the Pythagoras tree and represents the Pythagorean Theorem that is each triple of touching squares encloses a right angled triangle.

Diya Bera/7-D

2013-10-02 12:03:22 UTC

1. 12

2.A parabolais a two-dimensional, mirror-symmetrical curve, which is approximately U-shaped when oriented as shown in the diagram, but which can be in any orientation in itsplane. It fits any of several superficially different mathematical descriptions which can all be proved to define curves of exactly the same shape.

3.Albert Einstein

5.220, 284

6.26

7.14.8

8.Baudhayana

9.It consists of 204 squares

10. The Pythagoras tree is a plane fractal constructed from squares. Invented by the Dutch mathematics teacher Albert E. Bosman in 1942, it is named after the ancient Greek mathematician Pythagoras because each triple of touching squares encloses a right triangle, in a configuration traditionally used to depict the Pythagorean theorem. If the largest square has a size of L × L, the entire Pythagoras tree fits snugly inside a box of size 6L × 4L. The finer details of the tree resemble the Lévy C curve.

Nishat Tasnim 7b

2013-10-02 13:23:52 UTC

1. 12 coins.

2. Parabola means a symmetrical open plane

curve formed by the intersection of a cone with

a plane parallel to its sides.

3. Carl Friedrich Gauss.

4. Indroneil Kanungo and Sneha Jayprakash .

5. 220 and 284.

6. 26.

7. 14.8

8. Bhaskara

9. 64

Meghana Senthil Kumar 7B

2013-10-02 13:24:10 UTC

1) 8 coins

2) A symmetrical open plane curve formed by the intersection of a cone with a plane parallel to its side.

3) -

4) -

5) 220 and 284

6) 8

7) 14.8 times the mass of the Sun

ABIRAMI JAYARAM

2013-10-02 17:08:18 UTC

ANSWER'S

1.13/6

2. A PARABOLA IS A CURVE WHERE

ANY POINT IS AT AN EQUAL DISTANCE

FROM A FIXED POINT , A FIXED STRAIGHT

LINE

3. THERE IS NO SUCH MATHEMATICIAN

4.INDRONEIL KANGO , SNEHA JAYPRAKASH

5. 220 , 284

6. 12

7.14.8

8.BKASKARA II

9. A standard chessboard has about 64 squares .

10.BRAIN ( AND SOME SQUARES)

sudipta vinod kumar : 7-d

sudipta_vinod — 2014-02-11 12:31:16 UTC

1. 12 coins

2. symmetrical open plane curve formed by the intersection of a cone with a plane parallel to its side. The path of a projectile under the influence of gravity follows a curve of this shape

3. leonarda da vinci

4. sneha jayprakash

4. indroniel kango

5. 220 and 284

6. 26 years

7. 14.8

8. bhaskara

9. 64 quares

10 . pythagoras tree and it represents Pythagoras’ Theorem in the form of a fractal ‘tree’ design.‘The square on the hypotenuse is equal to the sum of the squares on the other two sides.’