cost of 3 mango,4 pears cost 55 and cost of 1 apple, 5 pears cost 70 ,and cost of 2 mango, 5 apple cost 60...what the total cost of 1 app,1 mango and 1 pea?

• answer is 35
  3 mango,4 pear 3x+4y=55
  5 pear ,1 apple 5y+z=70
  5 apple, 2 mango 2x+5z=60
  add all 5x+9y+6z=185 equation 1
  equation 2 is 3x+4y = 55
  by using z=70-5y put in to equation 2 and we get 5x-26y=-235 equation 3
  subtract eq.2 - eq 3
  we get y=10 , z= 20, x= 5
  so x+y+z=35
  
  
  
• 12 years agoHelpfull: Yes(14) No(4)
• ==>3m+4p=55----->eq1
  ==>a+5p=70------->eq2
  ==>2m+5a=60------->eq3
  now,add 1+2 eq===>a+3m+9p=125--->eq4
  add 2+3 eq====>a+2m+10p=130--->eq5
  solve 4 and 5 we get p=10,m=5 and a=20 so total cost is::::35
  
• 12 years agoHelpfull: Yes(3) No(6)
• by solving all 3 equations my ans=rs 25
• 12 years agoHelpfull: Yes(0) No(6)