1.

How many children are there in the row of children facing North? I. Vishakha who is fifth the left end is eighth to the left of Ashish who is twelfth from the right end. II. Rohit is fifth to the left of Nisha who is seventh from the right end and eighteenth from the left end.

Answer»

if the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question,
if the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question,
if the data either in statement I alone or in statement II alone are sufficient to answer the question,
if the data given in both statements I and II together are not sufficient to answer the question,

Solution :SINCE `8^(th)` to the left of `12^(th)` from the right is `20^(th)` from the right, so from I, we know that Vishakha is `5^(th)` from left and `20^(th)` from right i.e. there are 4 children to the left and 19 to the right of Vishakha. So, there are (4 + 1 + 19) i.e. 24 children in the ROW.
From II, Nisha is `7^(th)` from right and `18^(th)` from left end of the row. So, there are (6 + 1 + 17) = 24 children in the row.


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