Download App

Maths 1 Marks Question

Cubes and Cube Roots · Jharkhand Board (JAC) STD 8 (Jharkhand - English Medium). 16 questions.

Questions

1 Marks Question

Take a timed test

16 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
Evaluate:
$(0.05)^3$
Answer
$(0.05)^3= (0.05 \times 0.05 \times 0.05) = 0.000125$ Thus, the cube of $0.05$ is $0.000125.$
View full question & answer→
Question 21 Mark
Fill in the blank.
 $(0.5)^3= ......$
Answer
$(0.5)^3= 0.125.$
Solution:
$(0.5)^3$
$= 0.5 × 0.5 × 0.5$
$= 0.125$
View full question & answer→
Question 31 Mark
Evaluate:
$(1.2)^3$
Answer
$(1.2)^3$
$ = (1.2 × 1.2 × 1.2)$
$=1.728$ Thus, the cube of $1.2$ is $1.728.$
View full question & answer→
Question 41 Mark
Evaluate:
$(3.5)^3$
Answer
$(3.5)^3$
$= (3.5 × 3.5 × 3.5)$
$= 42.875$
Thus, the cube of $3.5$ is $42.875.$
View full question & answer→
Question 71 Mark
Evaluate $\Big(1\frac{2}{5}\Big)^3$
Answer
$\Big(1\frac{2}{5}\Big)^3$
$=\Big(\frac{7}{5}\Big)^3$
$=\frac{7\times7\times7}{5\times5\times5}$
$=\frac{343}{125}$
View full question & answer→
Question 81 Mark
Which of the following numbers are perfect cubes$?$ In case of perfect cube, find the number whose cube is the given number.
$243$
Answer
$243$ is not a perfect cube.
View full question & answer→
Question 91 Mark
Evaluate:
$ (60)^3$
Answer
$ (60)^3$
$= (60 × 60 × 60)$
$= 216000$
 Thus, the cube of $60 $is $216000.$
View full question & answer→
Question 101 Mark
Fill in the blank. $\sqrt[3]{\frac{\text{a}}{\text{b}}}=\ .....$
Answer
$\sqrt[3]{\frac{\text{a}}{\text{b}}}=\frac{\sqrt[3]{\text{a}}}{\sqrt[3]{\text{b}}}$
View full question & answer→
Question 111 Mark
Which of the following numbers are perfect cubes? In case of perfect cube, find the number whose cube is the given number. $256$
Answer
$256$ is not a perfect cube.
View full question & answer→
Question 121 Mark
Fill in the blank. $\sqrt[3]{\text{ab}}=\big(\sqrt[3]{\text{a}}\big)\times(.......)$
Answer
$\sqrt[3]{\text{ab}}=\big(\sqrt[3]{\text{a}}\big)\times\big(\sqrt[3]{\text{b}}\big)$
View full question & answer→
Question 131 Mark
Evaluate:
$(0.8)^3$
Answer
$(0.8)^3$
$= (0.8 × 0.8 × 0.8)$
$= 0.512$
Thus, the cube of $0.8$ is $0.512.$
View full question & answer→
Question 151 Mark
Which of the following numbers are perfect cubes$?$ In case of perfect cube, find the number whose cube is the given number. $5324$
Answer
$5324$ is not a perfect cube.
View full question & answer→
Generate Paper FreeAll Cubes and Cube Roots topics