What is 5 + 10 + 15 + .... + 100 ?

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5 + 10 + 15 + .... + 100 എത്ര ?

A1000

B1100

C1050

D1200

Answer:

C. 1050

Read Explanation:

5 + 10 + 15 + .... + 100 = 5(1 + 2 + 3 + ......... + 20) = 5( 20 × 21/2) = 5(210) = 1050

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