Answer:
The ratio of number of boxes of brand a sold to the number of boxes sold is 3/20
Step-by-step explanation:
A supermarket sells 4 brands of detergents a, b, c, d.
On this particular day, 15% of the total boxes sold was brand a and 45% was brand c.
ratio of number of boxes of brand a sold to the number of boxes sold = ?
15% of the boxes sold is box a
Total number of boxes sold is 100%,
therefore,
ratio of box a sold to the whole boxes sold will be
15/100 = 3/20 in fraction
