Question:
How tall is Nandhini?
I) Nandhini is 10 cm taller than Riya, who is 150 cm tall.
II) Nandhini is shorter than Anu, who is 165 cm tall.
How tall is Nandhini?
I) Nandhini is 10 cm taller than Riya, who is 150 cm tall.
II) Nandhini is shorter than Anu, who is 165 cm tall.
I) Nandhini is 10 cm taller than Riya, who is 150 cm tall.
II) Nandhini is shorter than Anu, who is 165 cm tall.
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If a statement directly gives a numerical value, it is usually sufficient on its own in Data Sufficiency questions.
Updated On: Apr 21, 2026
- Statement I alone is sufficient to answer the question
- Statement II alone is sufficient to answer the question.
- Statement I and II together are sufficient to answer the question but neither statement alone is sufficient.
- Statement I and II together are not sufficient to answer the question and additional data is required.
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The Correct Option is A
Solution and Explanation
Concept:
In Data Sufficiency, we check whether a statement gives a unique value. Direct numerical relations help determine exact values.
Step 1: Analyze Statement I alone.
Riya's height = 150 cm
Nandhini is 10 cm taller: \[ {Nandhini's height} = 150 + 10 = 160 { cm} \] A unique value is obtained.
Statement I alone is sufficient.
Step 2: Analyze Statement II alone.
Nandhini is shorter than 165 cm, but exact height is not known.
Statement II alone is NOT sufficient.
Step 3: Combine both statements.
Not required, since Statement I already gives a unique answer.
Hence, Statement I alone is sufficient.
Step 1: Analyze Statement I alone.
Riya's height = 150 cm
Nandhini is 10 cm taller: \[ {Nandhini's height} = 150 + 10 = 160 { cm} \] A unique value is obtained.
Statement I alone is sufficient.
Step 2: Analyze Statement II alone.
Nandhini is shorter than 165 cm, but exact height is not known.
Statement II alone is NOT sufficient.
Step 3: Combine both statements.
Not required, since Statement I already gives a unique answer.
Hence, Statement I alone is sufficient.
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II) Rahul's brother, who was born in 1964, is 35 years younger to his mother. - Who among P, Q, T, V and M is exactly in the middle when they are arranged in ascending order of their heights?
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