Maths 4 Mark Question

The population of a certain town was 50,000. In a year, male population was increased by 5% and female population was increased by 3%. Now the population became 52020. Then what was the number of males and females in the previous year?

Solve. 3x – 4 y= 16 ; 2x – 3y = 10

Solve the following equations
3x + y = 5........... (I)
2x + 3y = 1........(II)

Solve x + y = 14 and x - y = 2 .