Question

Daca 7xa=b:2=91, atunci suma numerelor a si b este:

a: 195                  b: 169               c:672                    d:236

Answer 1

7a=b/2=91

7a=91

a=91/7

a=13

b/2=91

se amplifica cu 2 si rezulta b/2=182/2

2b=364

b=364/2

b=182

a=13

b=182

a+b=13+182=195

raspns corect 195