18
3. If 24x is a multiple of 3, where x is a digit, what is the value of x? (Since 24x is a multiple of 3, its sum of digits 6+x is a multiple of 3; so 6+x is one of these numbers: 0, 3, 6, 9, 12, 15, 18, … . But since x is a digit, it can only be that 6+x = 6 or 9 or 12 or 15. Therefore, x = 0 or 3 or 6 or 9. Thus, x can have any of four different values.)
13
Oct
3. If 24x is a multiple of 3, where x is a digit, what is the value of x? (Since 24x is a multiple of 3, its sum of digits 6+x is a multiple of 3; so 6+x is one of these numbers: 0, 3, 6, 9, 12, 15, 18, … . But since x [...]
Tags:
-12 ,
… . But since x is a digit ,
15 ,
18 ,
3. If 24x is a multiple of 3 ,
3% ,
6 ,
9 ,
it can only be that 6+x = 6 or 9 or 12 or 15. Therefore ,
its sum of digits 6+x is a multiple of 3; so 6+x is one of these numbers: 0 ,
what is the value of x? (Since 24x is a multiple of 3 ,
where x is a digit ,
x = 0 or 3 or 6 or 9. Thus ,
x can have any of four different values.) ,
3.Express the following numbers in standard form: (iii) 3,18,65,00,000
10
Oct
3.Express the following numbers in standard form: (iii) 3,18,65,00,000 00 000. 18 3.Express the following numbers in standard form: (iii) 3 65 October 10, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,
How many terms of the AP : 24, 21, 18, . . . must be taken so that their sum is 78?
04
Oct
How many terms of the AP : 24, 21, 18, . . . must be taken so that their sum is 78? . . . must be taken so that their sum is 78? 18 21 How many terms of the AP : 24 October 4, 2020 Category: Chapter 5 - Arithmetic Progressions , Maths [...]
Which term of the AP : 21, 18, 15, . . . is – 81? Also, is any term 0? Give reason for your answer.
04
Oct
Which term of the AP : 21, 18, 15, . . . is – 81? Also, is any term 0? Give reason for your answer. . . . is – 81? Also 15 18 is any term 0? Give reason for your answer. Which term of the AP : 21 October 4, 2020 Category: Chapter [...]
Which term of an A.P. 3,8,13,18,………….is 78?
04
Oct
Which term of an A.P. 3,8,13,18,………….is 78? .............is 78? 13 18 8 Which term of an A.P. 3 October 4, 2020 Category: Chapter 5 - Arithmetic Progressions , Maths , NCERT Class 10 ,