Page 42 - Computer Genius Class 02
P. 42
exercise
A. Tick ( ) the correct option.
1. What is 5 more than 89?
(i) 84 (ii) 95
(iii) 94 (iv) 93
2. If = A and = Z, what will be ?
(i) AZAZ (ii) AAZA
(iii) AZZA (iv) ZAZA
3. If 1 2 3 then the secret message
will be decoded as .
(i) 132112 (ii) 123112
(iii) 133113 (iv) None of these
4. In a , the number in each space is the sum of the two numbers
below it.
(i) Number Grid (ii) Number Pyramid
(iii) Decoding (iv) All of these
B. State whether these statements are true or false.
1. In a number pyramid, the number in each space is the sum of the two
numbers below it.
2. In the number grid, each grid is replaced by the sum of the numbers in it.
3. Decoding involves converting a hidden message into a meaningful
te t using sym ols or patterns.
C. Answer the following questions:
1. The hidden messages can be in which form?
2. In number grid we usually start with the number at what place?
40 Computer Genius-II

