Question

If the price of 3 pen 2pencil and 4 eraser is 92 and the price of 8 pencil and 16 eraser is 68 then the price of 24 pens

Answer 1

Answer:

600

Explanation:

3x + 2y + 4z =92 .... (1)

8y + 16y = 68 .... (2)

multiply by 4 to Eq 1

then, 12x + 8y + 16z =368 ....(3)

put the value of eq (2) in (3)

then, 12x + 68 = 368

x = 25

then one pen value is 25 and 24 pens value is 600