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Q.

Write the following decimal in descending order $0.2, 0.002, 2.2, 2.02, 0.22, 0.02$ .

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a

2.2, 0.22, 2.02, 0.2, 0.02, 0.002

2

b

2.2, 2.02, 0.22, 0.2, 0.02, 0.002

4

c

2.2, 2.02, 0.22, 0.2, 0.02, 0.002

d

2.2, 2.02, 0.22, 0.2, 0.002, 0.02

answer is C.

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Detailed Solution

Concept- Descending order system: we have to write the numbers in largest first then smallest. This writing chain is called descending order system
Given: numbers are given,

0.2, 0.002, 2.2, 2.02, 0.22, 0.02

In ascending order we have to write the numbers in smallest to largest form but in descending order system we have to write numbers in largest to smallest, so descending order system of given numbers is mentioned below,
Greatest number is 2.2, so we have write it first

2.2, 2.02, 0.22, 0.2, 0.02, 0.002

Hence, the correct option is 3.

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