Question

State true or false?
(1)
() A perfect cube may end with two zeros
(i) If a number ends with 5, then its cube ends with 5
(iv) Cube of a number ending with zero has three zeros at its right
(w) The cube of a single digit number is a single digit number.
(vi) There is no perfect cube which ends with 8
(vii) The cube of a two digit number may be a three digit number.
Find the two digit number which is a square number and also a cubic number.​

Answer 1

Step-by-step explanation:

1.true

2.false

3.false

Answer 2

ANSWER

(i) Cube of any odd number is even.

FALSE: Odd multiplied by odd is always odd

(ii) A perfect cube does not end with two zeros.

TRUE: A perfect cube will end with odd number of zeroes

(iii) If square of a number ends with 5, then its cube ends with 25.

TRUE: 5 multiplied by 5 any number of times always gives 5 at units place

(iv) There is no perfect cube which ends with 8.

False: 2

3

=8

(v) The cube of a two digit number may be a three digit number.

FALSE: The smallest two digit number is 10 and 10

3

=1000 is a three digit number

(vi) The cube of a two digit number may have seven or more digits.

FALSE: 99 is the largest 2 digit number; 99

3

=989901 is a 6 digit number

(vii) The cube of a single digit number may be a single digit number.

TRUE: 2

3

=8 is a single digit number.

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