Answer:
a) x = 36%
b) c = 52.2
c) z =38%
d) y = 16%
Step-by-step explanation:
a) Given that b is x% more than a and c is y% more than b.
Therefore, ....... (1)
Now, if a = 25.25 and b = 34.34, then from equation (1) we get,
⇒ x = 36% (Answer)
b) Given that b is x% more than a and c is y% more than b.
So, ......... (2)
and, ......... (3)
If a = 36 and x = 25%, then from equation (2) we gat,
⇒ b = 45
Now, y = 16%, then from equation (3) we get
⇒ c = 52.2 (Answer)
c) Given that b is x% more than a and c is y% more than b. And c is z% more than a.
Now, if x = 15% and y = 20%, then
and
⇒ c = 1.2(1.15a) = 1.38a
Therefore,
⇒ z =38% (Answer)
d) Given that b is x% more than a and c is y% more than b. And c is z% more than a.
If x = 25% and z = 45%, then
and
........... (4) and
......... (5)
Now, from equations (4) and (5) we get
⇒ y = 16% (Answer)