IMO A

How?

Isn't "estimated to be" is the correct IDIOM?

IMO A.
whats the OA

'Estimated to be' and 'Estimated to have' are diferrent form of the same idiom. Both are correct. 'Estimated at' however is incorrect.

otherwise as well, you can eliminate all other options for their error. If you are having difficulty in eliminating any option, we can always discuss it

reachac wrote:'Estimated to be' and 'Estimated to have' are diferrent form of the same idiom. Both are correct. 'Estimated at' however is incorrect.

otherwise as well, you can eliminate all other options for their error. If you are having difficulty in eliminating any option, we can always discuss it

Ok, I have two questions.

1. Why do you think (B) is incorrect?
2. I read IDIOM as "Estimated to be" in the MH-SC book, how will figure out that there could be any odd case of any such idiom, such as in this case. I crossed out the three choices on the bases of read Idiom "Estimated to be" then of course it is not possible for me (or anyone) to choose the correct answer in the end because I am not sure about my English language knowledge and working or ruling out most of the options on the basis of pattern matching technique or in simple words "logic".

Any Suggestions.

Hmm,

1) B is wrong, Reason: Look at the part after the underlined part in the original sentence "the solar system's largest planet"...now B ends in jupiter's mass. Can jupiter's mass be the largest planet???

2) I agree that you(or anyone) would eliminate the options based on your knowledge/information about the correct idiom or pattern. But my suggestion to you(or to anyone else facing a similar situation) is that before you mark a option and confirm the answer please read the entire sentence again(with your option plugged in) and be convinced that your choice make sense to you or in other word you should be convinced bout the option you ve selected.