mistakes on old tests

[planetmrmr]

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Is it possible that there are mistakes in the answer keys of ASDA realeased tests? I know this sounds silly and that I probably just don't understand but one or two answers give me trouble? For example on the 1989 test/I-I DA question 39 - if you can explain it would be appreciated

 

[indianbds]

Is it possible that there are mistakes in the answer keys of ASDA realeased tests? I know this sounds silly and that I probably just don't understand but one or two answers give me trouble? For example on the 1989 test/I-I DA question 39 - if you can explain it would be appreciated

Hello,
I think u r r8t.
Answer must b mesiofacial groove and it's not mentioned in option.
But the lingual groove can b an answer for mesiolingual cusp rather than mesiofacial cusp.

Correct me if I am wrong.