alleryIf an AP has first term $a=6$ and common difference $d=-3$, which of the following is the correct AP?
A$6, 9, 12, 15, \ldots$
B$6, 3, 0, -3, \ldots$
C$6, -3, -6, -9, \ldots$
D$6, 3, 1, -3, \ldots$
Answer & Solution
Correct answer: B. $6, 3, 0, -3, \ldots$
Starting from 6 and adding $-3$ repeatedly gives $6, 3, 0, -3, \ldots$.
**Option A uses $d=+3$, while the others do not maintain a constant difference of $-3$.**
Keep practising Algebra: Simultaneous Linear Equations & Quadratics
Browse all Algebra: Simultaneous Linear Equations & Quadratics questions for Andhra Pradesh SSC (Class 10), or explore more Mathematics topics.
Related questions
If a point is reflected in the y-axis, the new co-ordinates of (a, b) becomeIn triangle ABC, points P and Q are on AB and AC such that PQ is parallel to BC. If AP = xTwo consecutive integers 11 and 13 are the central terms of an even-n sorted list. The medCLASS10 · Mathematics · Standard Angle ValuesIf sin θ = 1/2, then θ equals:The altitude AD of an equilateral triangle ABC of side length a isThe diagonals of a rhombus are 16 cm and 30 cm. The length of each side isIn triangle ABC right-angled at B, BD is perpendicular to AC. If AB = 5 cm and BC = 12 cm,