Question

Sau plantat 3230 flori 3/10 lalele, 4/10 garoafe, restul trandafiri. Câți trandafiri sau plantat?

Answer 1

$l + g + t = 3230$

$l = \frac{3}{10} \times 3230 = 3 \times 323 = 969$

$g = \frac{4}{10} \times 3230 = 4 \times 323 =1292$

$969 + 1292 + t = 3230$

$2261 + t = 3230$

$t = 3230 - 2261$

$t = 969$

Answer 2

Total 3230 flori
(3/10)*3230=9690/10=969 Lalele
(4/10)*3230=12920/10=1292 Garoafe
Trandafiri=Total-Lalele-Garoafe=3230-969-1292=969 
S-au plantat 969 Trandafiri