Question

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.​

Answer 1

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.