1
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
Consider the binomial expansion of (p + qx)9 :

What is the value of q if the coefficients of x3 and x6 are equal ?

A
p
B
9p
C
$\frac{1}{\text{p}}$
D
p2
2
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
Consider the binomial expansion of (p + qx)9 :

What is the ratio of the coefficients of middle terms in the expansion (when expanded in ascending powers of x)?

A
pq
B
p/q
C
4p/5q
D
1/(pq)
3
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
Consider the binomial expansion of (p + qx)9 :

Under what condition the coefficients of x2 and x4 are equal ?

A
p ∶ q = 7 ∶ 2
B
p2 ∶ q2 = 7 ∶ 2
C
p ∶ q = 2 ∶ 7
D
p2 ∶ q2 = 2 ∶ 7
4
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
Consider the word 'QUESTION' :

How many 4-letter words each of two vowels and two consonants with or without meaning, can be formed ?

A
36
B
144
C
576
D
864
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