Description

This mock test of Test: Cubes- 1 for LR helps you for every LR entrance exam.
This contains 5 Multiple Choice Questions for LR Test: Cubes- 1 (mcq) to study with solutions a complete question bank.
The solved questions answers in this Test: Cubes- 1 quiz give you a good mix of easy questions and tough questions. LR
students definitely take this Test: Cubes- 1 exercise for a better result in the exam. You can find other Test: Cubes- 1 extra questions,
long questions & short questions for LR on EduRev as well by searching above.

QUESTION: 1

**Q. **If volume of cube is 4913cm^{3} then length of side of cube is

Solution:

Let side be 'a'

volume of a cube=a^{3}

a^{3} = 4913

a= ∛4913

a = 17cm

QUESTION: 2

Number 343 is cube of

Solution:

343 = 7 ∗ 7 ∗ 7

343 = (7)³

=> ³√343 = 7

QUESTION: 3

If length of one side of cube is 20cm then volume of cube must be

Solution:

Volume of cube = a^{3}

Given that side of a cube is 20cm

Then volume will be (20cm)^{3}

Volume = 8000 cm^{3}

QUESTION: 4

9^{3} (cube of 9) is equal to

Solution:

9×9×9=729

QUESTION: 5

Cubic root of 729 is

Solution:

**An integer is divisible by 9 if and only if the sum of its digits is divisible by 9.**

**The sum of the digits of 729 is 7 + 2 + 9 = 18 and 18 is divisible by 9 so 729 is divisible by 9.**

**Hence, the correct answer is Option D**

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