The cost of 15 kg of groundnuts and4 kg of cashews is 7,000. The costof 10 kg of cashews is equal to 25 kggroundnuts. Find the cost ofgroundnut per kg.
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Answer:
let the cost of groundnuts per kg be x
and let the cost of cashews per kg be y
according to question :
15x +4y=7000. -(1)
10y=25x. -(2)
from equation (2)
y=25x/10
y=5x/2
put y =5x/2 in equation (1)
15x +4(5x/2)=7000
15x +10x =7000
25x=7000
x=7000/25
x=280
hence, the coat of groundnuts per kg is 280.
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