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Data SufficiencyJohn, Peter, and Paul together have ten marbles. If each has at least one marble, how many marbles does each boy have?

Data Sufficiency

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John, Peter, and Paul together have ten marbles. If each has at least one marble, how many marbles does each boy have?

You may select 1 option


Spoiler for correct answers:

Correct Answer is:- (2) Peter has half as many as John.


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John, Peter, and Paul together have ten marbles. If each has at least one marble, how many marbles does each boy have?

Post by Sanjeev » Wed Feb 14, 2018 7:01 pm

We have one equation with three variables (John + Peter + Paul = 10), we need to find two more.
We'll see which statements give us this information, a Logical approach.

(1) gives only one equation (John = Paul +5)
Insufficient.

(2) gives only one equation (Peter = John/2)
Insufficient.

Combined: we now have 3 distinct equations with 3 variables, sufficient.

(C) is our answer.



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John, Peter, and Paul together have ten marbles. If each has at least one marble, how many marbles does each boy have?

Post by spam bot » Wed Jun 20, 2018 10:32 am

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