Earth is revolving around the sun if the distance of the Earth from the Sun is reduced to 1/4th of the present distance then the present day length reduced by

A planet takes 200 days to complete one revolution around the Sun. If the distance of the planet from Sun is reduced to one fourth of the original distance, how many days will it take to complete one revolution ?

If the distance of the earth from the sun suddenly decreases to half its present value, then how many days will make a year ?

If the distance between the Earth and the sun shrinks to half the present distance, then find the new duration of the year.