Which amount of postage can be formed using just 3-cent stamp and 10-cent stamps?
A. 27
B. 20
C. 11
D. 5
Answer:A
Which amount of postage can be formed using just 3-cent stamp and 10-cent stamps?
A. 27 B. 20 C. 11 D. 5
Explanation: We can form 27 cent of postage with nine 3-cent stamp and 20-cent postage can be formed by using two 10-cent stamps.