MCQ
For an A.P. if $t_4=12$ and $d=-10$ then find $a$.
- A-18
- ✓42
- C-5
- D21
✓
Answer
Correct option: B.
42
B
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Height and base of a right angled triangle are 24 cm and 18 cm find the length of its hypotenuse
If one of the zeros of the cubic polynomial $x^3 + ax^2 + bx + c$ is $-1$, then the product of the other two zeros is:
→Which of the following quadratic equations has roots 3, 5?
The value of $k$ for which the system of equations $3x + 5y = 0$ and $kx + 10y = 0$ has non$-$zero solution, is:
→Which of the following is a Pythagorean triplet?
The sum of first $20$ odd natural numbers is:
→If simultaneous equations do not have any solution then their graphical interpretation contains ______ .
A hollow sphere of internal and external diameters $4\ cm$ and $8\ cm$ respectively is melted into a cone of base diameter $8\ cm$. The height of the cone is:
→In the figure, if $\text{ABC}$ is an equilateral triangle, then shaded area is equal to? 
→For the equations with variables x and y, if Dx = 26, Dy = −39 and D = 13 then x =?