What are the co-ordinates of the centroid of a triangle, whose vertices are A(2 , 5), B(-4 , 0) and C(5 , 4)?
1). (-1 , 3)
2). (1 , 3)
3). (1 , -3)
4). (-1 , -3)
What is the reflection of the point (4, 7) in the line y = -1?
1). (-6 , 7)
2). (-4 , -9)
3). (4 , -9)
4). (-6 , -7)
The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?
1). 28
2). 87
3). 51
4). 17
Sum of twice a fraction and its reciprocal is $\frac{17}{6}$. What is the fraction?
1). $\frac{4}{3}$
2). $\frac{5}{4}$
3). $\frac{3}{4}$
4). $\frac{4}{5}$
If a - b = 2 and ab = 24, then what is the value of $a^{3}- b^{3}$?
1). 280
2). 124
3). 140
4). 152