(4) According to the givenstatement, let M, A and J be thecosts of a mango, apple andjackfruit respectively.
According to the given statement,
6 × M = 4 × A ......(i)
and, 8 × A = 2 × J .......(ii)
From equations (i) and (ii),
6M = 4A = J
⇒
6 =
4 =
⇒
=
=
∴ Ratio M : A : J = 4 : 6 : 24
Hence, option (4) is not correct asan apple is more costly than amango.