Four fungicides w,x,y and z are to be tested by applying each to a different plant and the 4 plants are to be selected from a row of 10 plants. how many assignments of the 4 fungicides are possible?

Question

anonymous · Answer

OK so there are 4 fungicides. There are 10 plants per row, but only 4 are being used. Sp.
Fungicide W: Plant 1, Plant 2, Plant 3, Plant 4.
Fungicide X: Plant 1, Plant 2, Plant 3, Plant 4.
Fungicide Y: Plant 1, Plant 2, Plant 3, Plant 4.
Fungicide Z: Plant 1, Plant 2, Plant 3, Plant 4.

Total: 16.

anonymous · Answer

but i need to select from 10 plants! mustn't I use combinations here?

anonymous · Answer

Those are the different combinations. You would be using the fungicides on only 4 plants. The other 6 wouldn't come in to play.

anonymous · Answer

Oh now i get it. thank you summer =]

anonymous · Answer

medalled and followed ;)

shreehari499 · Answer

Thank You!