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

[EX Q]: Problem: if log 2 = 0.3010 and log 3 = 0.4771 then the value of log 4.5 is :
[EX A]: 0.6532

[EX Q]: Problem: a solution of 70 litres contains oil and water in the ratio 9 : x . if 6 litres of water is added to the solution , the ratio becomes 6 : 4 , find the value of x ?
[EX A]: 

[EX Q]: Problem: a piece of cloth cost rs 35 . if the length of the piece would have been 4 m longer and each meter cost re 1 less , the cost would have remained unchanged . how long is the piece ?
[EX A]:
10 mtrs