ExamBro
ExamBro
JEE Mains · Maths · STD 11 - 7. binomial theoram

दो अंको की संख्याओं ' \(n\) ', जिसके लिए \(3 n +7 n , 10\) का गुणज है, की कुल संख्या है

  1. A \(45\)
  2. B \(54\)
  3. C \(36\)
  4. D \(63\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(45\)

Step-by-step Solution

Detailed explanation

for \(3^{ n }+7^{ n }\) to be divisible by \(10\) \(n\) can be any odd number \(\therefore\) Number of odd two digit numbers \(=45\)
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app