Question

Q5b. Amna bought 7 bags at Rs m each and 4 crasers at Rs n each She had Rs ( 3m 3m) Ich Lind the
amount of money she had at first​

Answer 1

Step-by-step explanation:

Let the cost of 1 bag =x

And the cost of 1 pen =y

⇒3x+4y=257

⇒4x+3y=324

Equation (1) × 4 : 12x+16y=257×4

Equation (2) × 3 : 12x+9y=324×3

Subtract two equations ;

⇒7y=56

⇒y=8

⇒x=75

⇒total cost of 1 bag and 10 pens=x+10y=75+80=155

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Answer 2

Answer:

17

Step-by-step explanation:

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