Question

The ratio of the daily sales of two newspaper boys,Ivan and Mark, is 3:4 . if they sell 280 newspaper, how many newspaper did Ivan sell?​

Answer 1

Answer:

$\boxed{\sf{Ivan's \: \: newspaper = 3x = 3 \times 40 = 120 \: newspaper}}$

$\sf \: Mark 's \: \: newspaper = 4x = 4 \times 40 = 160 \: newspaper$

Step-by-step explanation:

$\text{The ratio of the daily sales of two newspaper boys,Ivan } \\ \text{and Mark, is 3:4}$

$\text{if they sell 280 newspaper}$

$\red {\text{how many newspaper did Ivan sell?}}$

$\text{Let the newspaper be x}$

$\sf \: than \\ \sf \: lvan \: newspaper \: = 3 x \\ \sf \: mark \: newspaper \: = 4x \:$

$\sf \: According \: \: to \: the \: \: question$

$\sf \: 3x + 4x = 280$

$\sf \: 7x = 280$

$\sf \: x \: = \cancel \frac{280 {}^{40} }{7}$

$\sf \: x \: = 40 \: \: \underline { answer}$

$\sf{Ivan's \: \: newspaper = 3x = 3 \times 40 = 120 \: newspaper}$

$\sf \: Mark 's \: \: newspaper = 4x = 4 \times 40 = 160 \: newspaper$

Answer 2

Answer:

Ivan sold 120 newspapers

Step-by-step explanation:

Ratio of Ivan and Mark= 3:4

They sell 280 newspaper

Therefore,

3x + 4x =280

=> 7x = 280

=> x = 280/7

= 40

3x = 120 and 4x= 160