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Q.

A rational number equivalent to number 4 5  is

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a

12 10  

b

24 30  

c

15 25  

d

25 20   

answer is B.

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Detailed Solution

Given- 4 5  .
To determine a rational number equivalent to 4 5  .
Consider the given options,
In option 1:
12 10  
Finding the lowest form,
12 10 = 6 5  
6 5   is not equal to 4 5  .
In option 2:
24 30  
Finding the lowest form,
24 30 = 4 5  
4 5   is equal to 4 5  .
In option 3:
15 25  
Finding the lowest form,
15 25 = 3 5  
3 5   is not equal to 4 5  .
In option 4:
25 20  
Finding the lowest form,
25 20 = 5 4  
5 4   is not equal to 4 5  .
Hence, a rational number equivalent to rational number 4 5  is 24 30   and option 2 is the correct option.
 
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