13. The difference of sum of even numbers and sum of odd numbers between 10 and 20 is a) 3 b) 6 c) 1 5 d) 4
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Answer:
(C) 15
Step-by-step explanation:
Even numbers - Those numbers which are divisible by 2.
Example - 2,4,9370, etc.
Odd numbers - Those numbers which are not divisible by 2.
Example - 1,3,9399, etc.
Now, sum of even no. between 10 and 20
= 12+14+16+18
= 26+16+18
= 42+18
= 60
Also, sum of odd no. between 10 and 20
= 11+13+15+17+19
= 24+15+17+19
= 39+17+19
= 56+19
= 75
Therefore, we have,
=> Difference = 75 -60 = 15
Hence, correct answer is (C) 15.
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