In an arithmetic progression if 13 is the 3rd term, 47 is the 13th term, then 17 is which term?
1). 9
2). 10
3). 7
4). 8
2. The sides of a triangle are in the ratio 3:4:6. The triangle is :
3. If x + y = 15 then (x - 10)3 + (y - 5)3 is:
4. If a - b = 3 and ab = 28, then a3 - b3 is
6. If $x^{2} + x$ = 19 ,then what is the value of $(x + 5)^{2} + \left[\frac{1}{(x + 5)^{2}}\right]$
8. If (a+$\frac{1}{a^{2}}$) =3 , then the value of $a^{2}+\frac{1}{a^{2}}$ is
9. What value should come in the place of question mark (?) in the following questions?