Download App

Arithmetic Progressions — Maths STD 10 — Question

CBSE BoardEnglish MediumSTD 10MathsArithmetic Progressions1 Mark
MCQ
The $10^{th}$ term of an $A.P. \ \{2, 7, 12, ...\}$ is :
  • A
    $49$
  • B
    $50$
  • C
    $48$
  • ✓
    $47$
✓

Answer

Correct option: D.
$47$
Here $, a = 2, d = 7 - 2 = 5$ and $n = 10$
$a_n= a + (n - 1)d$
$\Rightarrow a_{10}= 2 + (10 - 1) \times 5$
$= 2 + 9 \times 5$
$\Rightarrow a_{10}= 2 + 45 = 47$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Arithmetic Progressions→Arithmetic Progressions — all question types→Maths STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

The area of a sector whose perimeter is four times its radius $r$ units, is :
→
The mean of the data when $\sum\text{f}_\text{i}\text{d}_\text{i}=435,\sum\text{f}_\text{i}=30$ and $\text{a}=47.5$ is :
→
The value of $\left(\sin ^2 \theta+\frac{1}{1+\tan ^2 \theta}\right)$ is :
→
The vertices of a square are $(0, -1), (2, 1), (0, 3)$ and $(-2, 1)$. The side of the square is :
→
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:
→
A die is thrown once. The probability of getting an odd number greater than 3 is:
→
If $0^{\circ} \leq \theta \leq 45^{\circ}$ such that $\cos ^2 \theta-\sin ^2 \theta=\alpha$ and $\cos \theta-\sin \theta=b$, then find the value of $\left(\frac{a}{b}\right)^2+b^2$.
→
If $k, 2 k-1$ and $2 k+1$ are three consecutive terms of an $A.P.,$ then the value of $k$ is
→
In a right triangle ABC, right angled at B, BC = 12cm and AB = 5cm. The radius of the circle inscribed in the triangle is:
→
Choose the correct answer from the given four options : Graphically, the pair of equations $6x \ – 3y + 10 = 0, 2x \ – y + 9 = 0$ represents two lines which are :
→