Latest TCS Aptitude Question SOLUTION: 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?

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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?

Asked In TCS (11 years ago)

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Amandeep Singh  (11 years ago)

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

Is this solution Helpfull? Yes (14) | No (4)  

kalyan pannuru  (11 years ago)

==>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

Is this solution Helpfull? Yes (3) | No (6)  

neha sharma  (11 years ago)

by solving all 3 equations my ans=rs 25

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