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Sunny

· started a discussion

· 1 Months ago

the ans should be 61 not 3721 (Question: 146132.4 )

Who has solved it?

Question:
DIRECTIONS: What should come in place of the question mark (?) in the following question?
\(\sqrt[]{11449} \ \ {\times} \ \ \sqrt[]{6241} \) – (54)2 = √? + (74)2
Options:
A) 3846
B) 3721
C) 3581
D) 3938
E) 3256
Solution:

Ans: (b) 

\(\sqrt[]{11449} \ \ {\times} \ \ \sqrt[]{6241} \)  – (54)2 = √? + (74)2

⇒ 107 × 79 – 2916 = √? + 5476

⇒ 8453 – 2916 – 5476 = √?

⇒ √? = 61

⇒ ? = 61 × 61

= 3721.

saurabh sharma

· commented

· 1 Months ago

107*79-2916=x rut+5476
=8453-2916=x rut =5476
=5537-5476=x rut
=61=x rut
=61*61=321
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