Question

3/7=15/?
please tell this answer​

Answer 1

$\star \; {\underline{\boxed{\pmb{\red{\sf{ \; Given \; :- }}}}}}$

• $\sf{ \dfrac{3}{7} = \dfrac{15}{?} }$

$\star \; {\underline{\boxed{\pmb{\green{\sf{ \; To \; Find \; :- }}}}}}$

• Denominator = ?

$\star \; {\underline{\boxed{\pmb{\pink{\sf{ \; SolutioN \; :- }}}}}}$

✷ Calculating the Denominator :

${\dashrightarrow{\qquad{\sf{ \dfrac{3}{7} = \dfrac{15}{y} }}}} \\ \\ \\ \ {\dashrightarrow{\qquad{\sf{ 3 \times y = 7 \times 15 }}}} \\ \\ \\ \ {\dashrightarrow{\qquad{\sf{ 3 \times y = 105 }}}} \\ \\ \\ \ {\dashrightarrow{\qquad{\sf{ y = \dfrac{105}{3} }}}} \\ \\ \\ \ {\dashrightarrow{\qquad{\sf{ y = \cancel\dfrac{105}{3} }}}} \\ \\ \\ \ {\qquad \; \; {\therefore \; {\underline{\boxed{\purple{\pmb{\frak{ y = 35 }}}}}}}}$

$\\ \qquad{\rule{150pt}{2pt}}$

✷ Therefore :

❛❛ The required answer is 35 . ❜❜

$\\ {\color{cyan}{\underline{\rule{75pt}{9pt}}}}{\pink{\underline{\rule{75pt}{9pt}}}}{\purple{\underline{\rule{75pt}{9pt}}}}$

Answer 2

Given: $3/7=15/?$

We have to find the missing value of the above expression.

We are solving in the following way:

We have,

$3/7=15/?$

Let assume the missing value be$x$.

Then,

$\frac{3}{7} =\frac{15}{x}$

• By using the concept of equation shifting, we are solving the above data.  
• For this, we will separate the variables on one side and the constant on another side.

$=>3\times x=15\times7\\=>3x=105\\\\=>x=\frac{105}{3} \\\\=>x=35$

Hence, we get the missing number is$35$.