1
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Read the following information carefully and answer the questions given below.

The sixth term of an AP is 2 and its common difference is greater than 1.
What is the common difference of the AP, so that the product of the first, fourth and fifth terms is greatest?
A
8/5
B
9/5
C
2
D
11/5
2
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Read the following information carefully and answer the questions given below.

The sixth term of an AP is 2 and its common difference is greater than 1.
What is the first term of the AP, so that the product of the first, fourth and fifth terms is greatest?
A
$$-$$4
B
$$-$$6
C
$$-$$8
D
$$-$$10
3
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Read the following information carefully and answer the questions given below.

The interior angles of a polygon of n sides are in AP. The smallest angle is 120$$^\circ$$ and the common difference is 5$$^\circ$$.
How many possible values can n have?
A
One
B
Two
C
Three
D
Infinitely many
4
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Read the following information carefully and answer the questions given below.

The interior angles of a polygon of n sides are in AP. The smallest angle is 120$$^\circ$$ and the common difference is 5$$^\circ$$.
What is the largest interior angle of the polygon?
A
160$$^\circ$$ only
B
195$$^\circ$$ only
C
Either 160$$^\circ$$ or 195$$^\circ$$
D
Neither 160$$^\circ$$ nor 195$$^\circ$$
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