3 bags and 4 pens together cost 257 rupees whereas 4 bags and 3 penstogether cost 324 rupees. Find the cost of a bag and 10 pens. About the author Audrey
Answer: Rs.115 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 Hope it helps you Please mark me as brainliest Thank you Reply
Answer:
Rs.115
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
Hope it helps you
Please mark me as brainliest
Thank you
Answer:
155 is the answer
Step-by-step explanation:
75 cost of the bag
80 cost of ten pens