Question

Bunica a facut pt iarna 20 borcane de zacuscade 400 respectiv 800g in total 12 kg cate borcane de 400g si cate de 800g de zacusca a facut bunica?

Answer 1

Presupunem catoate sunt borcane de 800 de g

20x800=16000g=16kg

diferenta de kg

16kg-12kg=4kg

4k g=4000g

a)borcane de 400g:

4000:400=10 (borcane de 400g)

20-10=10 (borcane de800g)

v:(10x400)+(10x800)=4000g+8000g=12000g

4kg+8kg=12 kg