Question

Six out of ten isn't a very good ....

Answer 1

Six out of ten isn’t a good score (счёт)/result (результат)

Тут может быть не один вариант

Answer 2

Six out of ten isn't a very good score or result. It indicates a performance level of only 60%, which is generally considered below average or mediocre. Depending on the context, a score of 60% may not be sufficient to meet certain standards or expectations. However, it's important to note that the significance of a 60% score can vary depending on the situation, so it's always necessary to consider the specific context in which the score was obtained.