NCHMCT JEE 2016 Question Paper with solutions for online practice

Question : 3 of 200

Marks: +1, -0

Find the sum of all even natural numbers less than 75.

Solution:

Even natural numbers less than 75 are
2, 4, 6, 8, 10, ........... 74
= 2(1 + 2 + 3 + ........... + 37)
= 2

({27×38}/2)

= 1406

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