Question

e. 4 -6
2. A number is multiplied by 4,5 is added to it, the sum is divided by 11 and the result

is equal to 7. Find the number.
​

Answer 1

Answer:

Step-by-step explanation:

Let the no be x

Then as per question

4x+5/11 = 7

4x + 5 = 11×7

4x + 5 = 77

4x = 77-5

4x = 72

x =72/4 = 18

So the number is 18.

Answer 2

Correct Question: A number is multiplied by 4,5 is added to it, the sum is divided by 11 and the result is equal to 7. Find the number.

Answer:

18

Step-by-step explanation:

Let the required number be x.

According to the question;

The number is multiplied by 4, then 5 is added to it. The sum is multiplied by 11. The result is 7.

$\boxed{\bf Equation : \dfrac{4x + 5}{11} = 7}$

Solving the above equation;

$\ \implies \sf \frac{4x + 5}{11}=7\\\\\bf On\: cross-multiplying:\\\\ \implies \sf 4x + 5 = 11 * 7\\\\ \implies \sf 4x + 5 = 77\\\\ \implies \sf 4x = 77-5\\\\ \implies \sf 4x = 72\\\\ \implies \sf x = \frac{72}{4}\\\\ \boxed{\bf \therefore \: x = 18}$

Hence, the required number is 18.