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Recap

In a number pyramid, the number in each space is the sum of the two numbers
below it.

In a number grid each grid is replaced by the value of its result.
Decoding is the process of converting a hidden message to a meaningful text.

Assess Yourself

Choose the correct option.

1. The hidden message or secret message can be in the form of a symbol, number,

picture, letter or a .
a. Pattern b. Sequence

c. Instruction d. Decoding

2. If 1 2 3 then the secret message

will be decoded as .
a. 1223113 b. 2132311

c. 2132113 d. 2131223

Tick ( ) the correct statements and cross ( ) the wrong ones.

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.

Q Answer the following questions:
A
1. What is the process of converting a hidden message to a meaningful text?

2. Your friend Arjun wrote BAT as TAB; then how will you write the word CAR using his
secret code?

Reasoning and Analysis 43