MCQ
The numbers $-11,-7,-3,1,5, \ldots \ldots$ are
- Ain A.P. with $d=-18$
- Bin A.P. with $d=-4$
- ✓in A.P. with $d=4$
- Dnot in A.P.
✓
Answer
Correct option: C.
in A.P. with $d=4$
(c) : We have, $(-7+11)=(-3+7)=(1+3)$$=(5-1)=4
$
So, given numbers are in A.P. with $d=4$.
$
So, given numbers are in A.P. with $d=4$.
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
If in two triangles $A B C$ and $P Q R$, $\frac{A B}{Q R}=\frac{B C}{P R}=\frac{C A}{P Q}$, then
→$\pi\text{r}^2 $ gives us the $.........$ of the circle.
→The decimal expansion of $\pi$ is
→The mean of $n$ observations is $\bar{X}$. If the first item is increased by $1 ,$ second by $2$ and so on, then the new mean is
→Two poles of height $6m$ and $11m$ stand vertically upright upright on a plane ground. If distance between their fiit is $12m$ then the distance between their tops is:
→The value of k for which the system of linear equations x + 2y = 3, 5x + ky + 7 = 0 is inconsistent is:
Choose the correct answer from the given four options : In two line segments $AC$ and $BD$ intersect each other at the point $P$ such that $PA = 6\ cm, PB = 3\ cm, PC = 2.5\ cm, PD = 5\ cm, \angle\text{APB}=50^\circ$ and $ \ \angle\text{CDP}=30^\circ.$ Then $\angle\text{PBA}$ is equal to :
→Mark the correct alternative in the following : If the sum of $P$ terms of an $A.P$. is $q$ and the sum of $q$ terms is $p,$ then the sum of $p + q$ terms will be :
→In Fig. if $A D=4 cm B D=3 cm$ and $C B=12 cm$, then $\cot \theta=$
→Choose the correct answer from the given four options:
If in triangles ABC and DEF, $\frac{\text{AB}}{\text{DE}}=\frac{\text{BC}}{\text{FD}},$ then they will be similar, when:
→If in triangles ABC and DEF, $\frac{\text{AB}}{\text{DE}}=\frac{\text{BC}}{\text{FD}},$ then they will be similar, when: