Dividation of rupees

Ratio of 2 rupees 50 paise and 3 rupees 75 paise is ____.

a bag contains coins of denominations 1 rupee , 2 rupee and 5 rupees . Their numbers are in the ratio 4:3:2 .If bag has total of Rs. 1800 then find the number of 2 rupee coins ?

The decimal expression for 8 rupees 8 paise (in Rupees) is