Set A contains all the even numbers between 2 and 50 inclusive Set B contains all the even numbers b...........

Quantitative Aptitude ( CCS) Arithmetic progression

Set A contains all the even numbers between 2 and 50 inclusive. Set B contains all the even numbers between 102 and 150 inclusive. What is the difference between the sum of elements of set B and that of set A?

2500

5050

11325

6275

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Explanation:

SET A: {2, 4, 6, 8,...., 50}. Set of first 25 consecutive positive even numbers.
SET B: {102, 104, 106,....., 150}.
Another set of 25 consecutive even numbers starting from 102.}
Difference between 1st term of set A and that of set B is 100.
Difference between 2nd term of set A and that of set B is 100.
Each term in set B is 100 more than the corresponding term in set A.
So sum of the differences of all the terms is (100 + 100 + 100 + ....) = 25 * 100 = 2500.