46. Uchta tyulen bolasi birgalikda 45 kg. har biri 50 kg ga yetishi uvhun uchta tyulen bolasi necha kg baliq istemol qilishi zarur.
A) 1050 B) 700 C) 350 D) 450
Yechimi ✍ 1) 3 ta tulen 45 kg
45/3= 15 kg dan
2) 50-15=35 kg semirgan
3) 35*10=350 har biri kgdan ovqat yegan
4) 350*3=1050 kg baliq
47. Erkak va urg‘ochi qush tanasining birgalikdagi og'irligi 330 g. Erkagining massasi urg‘ochisinikidan 30 g ko‘p. Urg’ochisining massasi 168 g ga yetishi uchun hasharot qancha o’simlik bilan oziqlanishi kerak?
A) 1800 B) 1900 C) 800 D) 1600
Yechimi (Erkag)+(urgʻochisi)=330
x+30. x gr
x+30 + x = 330
x=150
168-150=18 gr semirgan
Oʻsimlik --- hasharot ---- qush
1800 gr------ 180 gr -------18 gr
Tuzuvchi: J. Asatillayev.
