RRB Paramedical Staff Nurse Model Paper 5

Question : 41 of 100

Marks: +1, -0

. What should come in place of question mark (?) in the following questions?

[(65)^{2}÷(5)^{2}]+[(27)^{2} ÷(3)^{2}]-(4)^{4}=?

Solution:

Consider the expression,

⇒\{(65)^{2}÷(5)^{2}\}+\{(27)^{2} ÷(3)^{2}\}-(4)

⇒ \;{4225}/{25}+\;{729}/{9}-256

⇒ 169+81-256

⇒ 250-256

⇒-6

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