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Q.

The sum of two numbers is 31.021. If one of them is 11.56 then the other number is:


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a

19.461

b

17.461

c

18.641

d

19.561

answer is A.

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Detailed Solution

Concep- Prior to moving on, we must first assume that the other integer is equal to x. The next criterion is that the total of the two numbers, 11.56 and x, be 31.021. The value of x may then be obtained by rearranging the equation using the previously described equation. When we take 11.56 away from both sides, we arrive at the required result.
The sum of two numbers =31.021  
One of the numbers =11.560  
Other number =31.021−11.560=19.461  
Hence, the correct answer is option 1.
 
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