The task is to generate the correct answer for a given math problem.

Problem: the average of temperatures at noontime from monday to friday is 55 ; the lowest one is 45 , what is the possible maximum range of the temperatures ?
40

Problem: if one - third of one - fourth of a number is 18 , then 3 - tenth of that number is : a . 35
64.8

Problem: a reduction of 15 % in the price of salt enables a lady to obtain 10 kgs more for rs . 100 , find the original price per kg ?

1.8