Question

Find a number which when multipled by 8 in increased by 91

Answer 1

$\huge{\boxed{\mathscr{Solution \: :-}}}$


Let the number be x

A number which multiplied by 8 = x × 8 = 8x

A number increased by 91 = x + 91


According to the question,

8x = x + 91

➾ 8x - x = 91

➾ 7x = 91

∴ x = 13


∴ The number is 13


Let's check the solution :

➾ 8x = x + 91

By putting the value of x as 13

➾ 8 × 13 = 13 + 91

➾ 104 = 104

∴ LHS = RHS ✔✔


$\huge{\boxed{\mathscr{Thanks}}}$

Answer 2

SOLUTION :

$let \: the \: number \: multiplied\: by \: 8 \: be \: x$

$According \: to \: the \: given \: question$

$x \times 8 = x + 91 \\ \\ 8x = x + 91 \\ \\ 8x - x = 91 \\ \\ 7x = 91 \\ \\ x = \frac{91}{7} \\ \\ x = 13$

Therefore,

$the \: number \:required \: is \: 13$