B. Multiple Choice: Write the letter of the correct answer in your answer sheet.
6. Which of the following sets of numbers represents geometric sequence?
A. 1,5, 25, 125, ... C. 6, 9, 12, 15, ...
B. 1, 1, 2, 3, 5, ... D. 12, 13, 14, 15, ...
_7. Find the common ratio of the geometric sequence 8,-8, 8,-8.
A. 2 B.-2
D.-1
_8. What is the next term in the geometric sequence 3, -12, 48, -192?
A. -768 B. 768
C. 3072 D.-3072
9. Find the geometric mean between 4 and 144?
A. 36
B. 16 C. 24 D. 32
10. If three geometric means are inserted between 2 and 18, find the third geometric mean.
A. 1 B. 12
C. 14 D. 13
11. Find ai of a geometric sequence, if as = 16, 26 = 32.
A.-4 B.4
C.-1
D. 1
12. Renz Joseph saved Php10 on the first day, Php15 on the second day, Php20 on the third day and so on.
If the pattern continues, how much will he save for one year?
A. 330,320
B. 332,150
C. 328,495
D. 1830
13. If a clock strikes once at 1 o'clock, twice at 2 o'clock and so on. How many times will it strikes in a day?
A. 200 B. 250 C. 300 D. 350
14. Christian starts a text brigade about safety protocol before, during and after earthquake and sends it
to his three friends. Each of the three friends sends the message to three other friends and the
sequence continues. If no one breaks the text brigade, what is the total number of messages sent from
the first to the 5th sending?
A. 1092
B. 120 C.3279 D. 363
15. Charlene Ann earns from online selling. She wants to give her father down payment for motorcycle
which will he use for the product delivery. She decided to save money from her earnings weekly. She
started with 50 pesos and doubles the amount every week. If the down payment for the motorcycle is
Php 3,000.00, in how many weeks will she raise the amount?
A. 20
B. 20.5 C. 30.5
D. 30