Sagot :
Highlight; Refer from the triangle above;
P = BR
B = P/R
R = P/B
Solutions;
Mainly all of the questions should be solved by its base where;
[tex]B= \frac{P}{R} [/tex]
1. P = 20, R = 25%, B = ?
[tex]B= \frac{20}{25\%} = 80[/tex]
Thus the base is 80
2. P = 78, R = 32%, B = ?
[tex]B= \frac{78}{32\%} = 243.75[/tex]
Thus the base is 243.75
3. P = 48, R = 20%, B = ?
[tex]B= \frac{48}{20\%} = 240[/tex]
Thus the base is 240
4. P = 220, R = 50%, B = ?
[tex]B= \frac{220}{50\%} = 440[/tex]
Thus the base is 440
5. P = 84, R = 60%, B = ?
[tex]B= \frac{84}{60\%} = 140[/tex]
Thus the base is 140.