Download App

Real Numbers — Maths STD 10 — Question

CBSE BoardEnglish MediumSTD 10MathsReal Numbers1 Mark
MCQ
If $\frac{241}{4000}=\frac{241}{2^\text{m}\times5^\text{n}},$ Then :
  • A
    $m = 4$ and $n = 5$
  • B
    $m = 3$ and $n = 2$
  • ✓
    $m = 5$ and $n = 3$
  • D
    $m = 2$ and $n = 5$
✓

Answer

Correct option: C.
$m = 5$ and $n = 3$
$\frac{241}{4000}=\frac{241}{2^\text{m}\times5^\text{m}}$
$\Rightarrow\frac{241}{2^5\times5^3}=\frac{241}{2^\text{m}\times5^\text{n}}$
Comparing the denominators of both fractions, we have $m = 5$ and $n = 3$

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 Real Numbers→Real Numbers — all question types→Maths STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

The perimeters of two similar triangles $\text{ABC}$ and $\text{PQR}$ are $60 \ cm$ and $36 \ cm$ respectively. If $\text{PQ}=9 \ cm$, then $\text{AB}$ equals
→
If the mid point of the line segment joining $A(x, y+1)$ and $B(x+1, y+2)$ is $C(3 / 2,5 / 2)$, then $x$ and $y$ respectively are
→
The diameter of a car wheel is $42 \ cm$ . The number of complete revolutions it will make in moving $132 \ km$ is
→
The arithmetic mean and mode of a data are 24 and 12 respectively, then its median is
→
A horse is tied to a peg at one corner of a square $-$ shaped gross field of side $25m$ by means of a $14m$ long rope. The area of that part of the field in which the horse can graze is :
→
If $\text{x}=\text{a}\sec\theta\cos\phi,\text{y}=\text{b}\sec\theta\sin\phi\text{ and z}=\text{c}\tan\theta,$ then $\frac{\text{x}^2}{\text{a}^2}+\frac{\text{y}^2}{\text{b}^2}=$
→
If $\frac{1}{x+2}, \frac{1}{x+3}, \frac{1}{x+5}$ are in A.P. Then, $x=$
→
Choose the correct answer from the given four options in the following questions : The zeroes of the quadratic polynomial $\text{x}^2+\text{kx}+\text{k},\text{ k}\neq0,$ :
→
Mark the correct alternative in the following:
If $S_n$ denote the sum of the first $n$ terms of an $A.P.$ If $S_{2 n}=3 S_n$, then $S_{3 n}: S_n$ is equal to:
→
A solid piece of iron in the form of a cuboid of dimensions $( 49 \ cm \times 33 \ cm \times 24 \ cm )$ is moulded to form a solid sphere. The radius of the sphere is
→