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The age of Amit is same as Sumit because they are twins, Richa is younger than Sumit, Richa is younger than Jyotsana but elder than Saurabh, Sumit is younger than Jyotsana. Who is the eldest among them?
Saurabh
Amit
Jyotsana
Richa
None of the above
Jyotsana
Map the inequalities and find the one variable that does not appear on the smaller side of any comparison.
Map the inequalities and find the one variable that does not appear on the smaller side of any comparison.
Establish Equality and Inequalities
From the problem: Amit = Sumit. Richa < Sumit. Richa < Jyotsana. Richa > Saurabh. Sumit < Jyotsana.
Chain the Comparisons
Since Amit = Sumit, we have Amit and Sumit < Jyotsana. We know Richa < Sumit, so Richa < Sumit < Jyotsana. We know Saurabh < Richa. Combining these: Saurabh < Richa < Sumit (or Amit) < Jyotsana.
Final Conclusion
The order from youngest to eldest is: Saurabh < Richa < Amit/Sumit < Jyotsana. Jyotsana is positioned at the top of this hierarchy.
A: Saurabh is the youngest, not the eldest. B: Amit is younger than Jyotsana and thus cannot be the eldest. D: Richa is younger than both Sumit and Jyotsana, making her ineligible for being the eldest.
C is correct because Jyotsana stands at the top of the age hierarchy based on the comparative inequalities provided.
When ranking items, represent inequalities as a single chain on a number line to instantly spot the extremes.
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