Question

find the sum of first five multiples of 7​

Answer 1

$\mathfrak{\large{\underline{\underline{Answer :-}}}}$

The Sum of the first 5 multiples of 7 is 105

$\mathfrak{\large{\underline{\underline{Explanation :-}}}}$

Given :

Multiples of = 7

To find :

Sum of first 5 multiples

Solution :

• Multiples are the numbers which can be divided fully without any Remainder by the number of which they are the multiple is called a multiple of a number.

• It is the Multiplication table of the number in order.

Example :-

12 is the 2nd multiple of 6.

$\sf{\implies} \: 12 \div 6 \\ \sf{\implies} \: 2$

12 gets divided by 6 without any Remainder. Hence, 12 is a multiple of 6.

$\rule{300}{1.5}$

First 5 multiples of 7 :

• 7
• 14
• 21
• 28
• 35

To get the Sum of the first 5 multiples, we need to add them.

$\rule{300}{1.5}$

Addition of the numbers -

$\sf{\implies} \:7 + 14 + 21 + 28 + 35$

$\sf{\implies} \:21+ 21 + 28 + 35$

$\sf{\implies} \:42+ 28 + 35$

$\sf{\implies} \:70 + 35$

$\sf{\implies} \: 105$

$\therefore$ The Sum of the first 5 multiples of 7 is 105.

Answer 2

Solution :-

Multiplying is a short way of showing repeated addition.

The answers obtained from always adding the same number give us the multiples of that number.

7 = 7 × 1 = 7

7 + 7 = 7 × 2 = 14

7 + 7 + 7 = 7 × 3 = 21

7 + 7 + 7 + 7 = 7 × 4 = 28

7 + 7 + 7 + 7 + 7 = 7 × 5 = 35

.°. The First Five Multiple of 7 are 7, 14, 21, 28 and 35.

Sum = 7 + 14 + 21 + 28 + 35

= 105

.°. The Sum of First Five Multiple of 7 is 105.

Hope it Helps !!!!