Answer:
The number of batteries sold was 240 and the number of small boxes of pens sold was 48
Step-by-step explanation:
Let
x -----> the number of batteries sold
y ----> the number of small boxes of pens sold
we know that
[tex]3x+5y=960[/tex] -----> equation A
[tex]x=5y[/tex] ----> equation B
substitute equation B in equation A
[tex]3(5y)+5y=960\\15y+5y=960\\20y=960\\y=48\ boxes\ of \ pens[/tex]
Find the value of x
[tex]x=5(48)=240\ batteries[/tex]
therefore
The number of batteries sold was 240 and the number of small boxes of pens sold was 48