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

Problem: a number x is mistakenly divided by 10 instead of being multiplied by 10 . what is the percentage error in the result ?
- 99 %

Problem: p , q and r together earn rs . 1710 in 9 days . p and r can earn rs . 600 in 5 days . q and r in 7 days can earn rs . 910 . how much amount does r can earn per day ?
s . 60

Problem: what percent is 320 gm of 1 kg ?

32