Question
If the sequence $\frac{a-3 b}{b}, \frac{3 a-3 b}{b}, \frac{5 a-3 b}{b}, \frac{7 a-3 b}{b}, \ldots$ is an A.P. with common difference 3, then a / b = __________.
✓
Answer
3/2
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 one root of the quadratic equation $3 x^2-10 x+k=0$ is reciprocal of the other, then k = __________.
→The parabola representing a quadratic polynomial $f(x)=a x^2+b x+c$ opens downward when __________.
→In fig. the angles of depressions from the observing positions $O _1$ and $O _2$ respectively of the object A are _________, _________.
→The value of $\sin 23^\circ\cos 67^\circ + \cos 23^\circ \sin 67^\circ$ is _______.
→The values of y for which the point (2,-4) is equidistant from the points (3, 8) and (-10, y), are ____________ .
The distance between the points (a, b) and (-a, -b) is _________.
A circle can have ________________ parallel tangents at the most.
If 9th term of an A.P. is zero, then its $29^{\text {th }}$ and $19^{\text {th }}$ terms are in the ratio __________.
→The ratio between the HCF and LCM of 5, 15 and 20 is __________.
It is given that $\triangle A B C \sim \triangle D F E, \angle A=30^{\circ}, \angle C=50^{\circ}$, AB = 5 cm, AC = 8 cm AND DF = 7.5 cm. Then DE = ____________ and $\angle F$ = ____________ .
→