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Change in active voice:

A mathematical problem posed by sir Issac Newton more than 300 years ago has been solved for the first time by 16 years old Shouryya Ray.

the exact calculation of the path of a projectile under gravity and subject to air resistance was worked out by Shouryya Ray.

mathematicians had been stumped by this problem for centuries before it was worked out by the indian born teen while working on a school project.

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by vinayreprter

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