Cube Numbers

Q.

(256)^0.16×(256)^0.09

Q.

What is the units digit of the cube of the number whose unit digit is 7?

1. 3

2. 5

3. 2

4. 4

Q. Shubhangi has twice as many 20-rupee notes as she has 50-rupee notes. Altogether, she has 2700 rupees. How many 50-rupee notes does she have ?

Q. The cube of 0.12 is _______.

1. 0.001768
2. 0.001456
3. 0.001778
4. 0.001728

Q.

What is ${20}^3$ - ${19}^3$?

1. 2197

2. 4913

3. 1331

4. 1141

Q. What is the value of $\left[\frac{{\left(2.3\right)}^3-0.027}{{\left(2.3\right)}^2+0.69+0.09}\right]$?

1. $2.6$
2. $2$
3. $1.3$
4. $1$

Q.

Which of the following numbers can be the cube root of 85184?

1. 41

2. 43

3. 44

4. 45

Q. Evaluate: $5^3-2^3-3^3$

1. $90$
2. $-90$
3. None of these
4. $120$

Q. What is the smallest positive number greater than $1$ which is a cube as well as a square ?

1. $8$
2. $64$
3. $72$
4. $144$

Q.

Write these exponential form.

(1) five to the power of four

(2) three to the power of two (three square)

(3) minus ten to the power of five

(4) one third to the power of three

(5) two cubed to the power of four

Q. Cube of an even number is always ______ .

1. odd
2. coprime to the given number
3. even
4. prime

Q. State two smaller units of volume. How are they related to the S.I. unit?

Q.

Write the cubes of:

(1) −2

(2) +1

(3) −5

(4) +7

(5) −10

(6) 2

(7) 3

(8) 10

(9)

(10)

Q.

$4^3$ - $3^3$ = ___ + 4 $\times$3 $\times$3.

Q. Find the smallest number by which the number $88$ must be divided to obtain a perfect cube

1. $11$
2. $5$
3. $7$
4. $9$

Q. Find the cube root of :

1. $2^{\frac{1}{27}}$
2. $2^{\frac{5}{9}}$
3. $2^{\frac{10}{81}}$
4. None of these
   

Q. If two Pizzas are to be shared by some children such that each child gets 1 by 6 of the pizza, among how many children will the pizza be shared.

Q.

Give the cubes of (a) +5 (b) (−6)

Q. Find:
0.03 $\times$ 1000

1. 30
2. 0.3
3. 300
4. 3