RÈGLE DE TROIS COMPOSÉE

(Arith. p. 113.) P.841. 6X15:15::10X27:x=R. £45, 842. TKX3:4::14X2:56=R. 21, 843, 12X4:160::2X8:£853 65. 8d.—R. 32.

. 1050X6:250;;xX4:960—R, GO4S, 5. 8X14:2::4X365:2=R. 26} barriques.

. 2X15:160::10X6:90R. 74 sem.

. 12X1:48::xX9:19800=R. 550 matelots.

. 18X36:12::12X48:2=R,. 10% min.

. 3X7:14::2X7:263X8=—=R. 450 chevaux $.