#### Term 2 Information Processing Model Question Paper

8th Standard EM

Reg.No. :
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Maths

Time : 00:45:00 Hrs
Total Marks : 25
5 x 1 = 5
1. If F(n) is a Fibonacci number and n = 8, which of the following is true?

(a)

F(8) = F(9) + F(10)

(b)

F(8) = F(7) + F(6)

(c)

F(8) = F(10) × F(9)

(d)

F(8) = F(7) – F(6)

2. Every 3rd number of the Fibonacci sequence is a multiple of _______

(a)

2

(b)

3

(c)

5

(d)

8

3. Two numbers are said to be co-prime numbers if their HCF is

(a)

2

(b)

3

(c)

0

(d)

1

4. There are four groups of letters in each set. Three of these sets are a like in some way while one is different. Find the one which is different.

(a)

C R D T

(b)

A P B Q

(c)

E U F V

(d)

G W H X

5. Find the correct answer from the four alternatives given
If the word ‘P H O N E’ is coded as ‘S K R Q H’, how will ‘R A D I O’ be coded?

(a)

S C G N H

(b)

V R G N G

(c)

U D G L R

(d)

S D H K Q

6. 2 x 2 = 4
7. Using repeated division method find HCF of the following:
455 and 26

8. On a school trip, 56 girls and 98 boys went to Kanyakumari. They were divided into as many groups as possible so that there were equal numbers of girls and boys in each group. find the largest group possible? (To find the HCF using repeated division method)

9. 2 x 3 = 6
10. Given that one pair of new born rabbits they produce a new pair each month and from the second month, each new pair can breed themselves. Find how many pairs of rabbits are bred from one pair in a year, and find the relationship between the number of months and the number of pairs of rabbits by tabulation (a pair means (a male and a female)).

11. Use Ceasar Cipher table set +4 and to try to solve the given secret sentence.
fvieo mr gshiw ger fi xvmgoc

12. 2 x 5 = 10
13. There are 270 ginger chocolates, 384 milk chocolates and 588 coconut chocolates. What is the largest number of containers possible so that each container contains the same number of chocolates of each kind?

14. Find the HCF of 144 and 120