Items    Qty kg    Price in Rs./kg in base year       Price in Rs./kg in current year      Total cost of items  (in Rs.) in base year    Total cost of items  (in Rs.) in current year Sugar$$5$$$$17$$$$16$$$$85$$$$80$$ Tea$$1$$$$120$$$$134$$$$120$$$$134$$ Pulses$$5$$$$34$$$$40$$$$170$$$$200$$ Ghee$$2$$$$180$$$$190$$$$360$$$$380$$ Wheat$$30$$$$12$$$$15$$$$360$$$$450$$ Rice$$8$$$$20$$$$22$$$$160$$$$176$$ Total$$1,255$$$$1,420$$ Cost of living index $$= dfrac { ext {Total expenditure in current year}}{ ext {Total expenditure in base year}} imes 100$$ $$= dfrac {1420}{1255} imes 100$$ $$= dfrac {142000}{1255} = 113.15$$ Thus the cost living index $$= 113.15$$.