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Q.

The difference of the sum of even numbers and sum of odd numbers between 10 and 20 is:


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a

13

b

14

c

15

d

16 

answer is C.

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Detailed Solution

Concept- Even numbers are numbers that are divisible by 2 , rest are known as odd numbers
Even  number from 10 to 20 are = 12,14,16,18
Sum = 12+14+16+18 = 60
Odd numbers are 11, 13, 15, 17, and 19 from 10 to 20.
Sum = 11+13+15+17+19 = 75
Difference in sum = 75 – 60 = 15
Hence, the correct option is 3.
 
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