If a, b, c, are in proportion, then - Vidyadip

MCQ

If $a, b, c,$ are in proportion, then

A
$a^2 = bc$
✓
$b^2= ac$
C
$c^2 = ab$
D
None of these.

✓

Answer

Correct option: B.

$b^2= ac$

$\because$ $a, b$ and $d$ are in proportion,
$\therefore$ $a : b : : c$
$\Rightarrow ab = bc$
$\Rightarrow b2 = ac$

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 Each]" from Ratio And Proportion→Ratio And Proportion — all question types→MATHS STD 6 question papers→Gujarat Board STD 6 question papers→Gujarat Board question paper generator→

Similar questions

Mark against the correct answer in the following:
$(-7) + (-9) + 12 + (-16) = ?$

Mark $(\checkmark)$ against the correct answer in the following: $\frac{3}{2}$ right angles = .......

If the diagonals of a quadrilateral bisect each other at right angles, this quadrilateral is:

The difference between the predecessor of a number and the number it self is

Mark $(\checkmark)$ against the correct answer in the following:
$\frac{289}{391}$ When reduced to the lowest terms is:

Take two digits, say $1$ and $2.$ Make the greatest $4-$digit number using both the digits equal number of times.

The cost of ploughing a field at $Rs. 9$ per square metre is $Rs. 1872$. If the breadth of the field is $13m$, then its length is.............

Which of the following is the correct sum of digits for the number 176?

Mark the correct alternative of the following:If $\frac{45}{60}$ is equivalent to $\frac{3}{\text{x}},$ then the value of $x$ is:

An isosceles trapezium has: