Question
On which date National Science Day  is celebrated
annually in India ?Solution
National Science Day is celebrated in India on 28 February every year to mark the discovery of the Raman effect by Indian physicist Sir Chandrashekhara Venkata Raman on 28 February 1928.
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A number is first increased by 20% and then decreased by 10%. If the final number is 108, find the original number.
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Find the sum of all natural numbers from 1 to 300 which are divisible by 7.
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