price of cycle = 3600 Rs
if the price is reduced by 20%, the price will be:
3600 - (20/100*3600) = 3600 - (20*36)
= 3600 - 720
= 2880 Rs
if the price is further reduced by 1/4 (25%),
2880 - (25/100*2880) = 2880 - 720
= 2160 Rs
Therefore, if the price is reduced first by 20% and this is further reduced by 25%, the final price after reduction will be 2160 Rs.