allery349 चा वर्ग किती आहे?
A122801
B122881
C121801
D120801
Answer & Solution
Correct answer: C. 121801
1. 349 ला (350 − 1) असे लिहा.
2. (350 − 1)² = 350² − 2·350 + 1 = 122500 − 700 + 1.
3. हे 121801 च्या बरोबर आहे.
_Source: RRB Group D (RRC) PYQ, held 27-10-2013, Q.18._
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