10. TieH.C.F. of two numbers is 3 . Which of the following pairs represents the two numbers in the options below? A. 12 and 17 B. \( \quad 10 \) and 20 C. 9 and 15 D. 8 and 12 E. 4 and 6 15. 11. \( 25 \% \) of 500.00 is less than one of the following by \( \$ 80.00 \). A. \( \$ 195.00 \) B. \( \quad 2205.00 \) C. \( \quad \$ 225.00 \) D. \( \quad \) 230.00 E. \( \quad \$ 240.00 \) 12. Change \( \$ 32.08 \) to kobo. A. \( \quad 320 \) B. 328 C. \( \quad 330 \) D. 3,208 E. 3,280 13. How many NIO.00 added up to make \( 211,000.00 ? \)

Let's solve each problem step by step. ### Problem 10: Finding pairs of numbers with H.C.F. of 3 **Known Condition:** The H.C.F. of two numbers is 3. **Options:** - A. 12 and 17 - B. 10 and 20 - C. 9 and 15 - D. 8 and 12 - E. 4 and 6 **Step 1:** Check each pair to see if their H.C.F. is 3. 1. **Pair A: 12 and 17** - Factors of 12: 1, 2, 3, 4, 6, 12 - Factors of 17: 1, 17 - H.C.F. = 1 (not 3) 2. **Pair B: 10 and 20** - Factors of 10: 1, 2, 5, 10 - Factors of 20: 1, 2, 4, 5, 10, 20 - H.C.F. = 10 (not 3) 3. **Pair C: 9 and 15** - Factors of 9: 1, 3, 9 - Factors of 15: 1, 3, 5, 15 - H.C.F. = 3 (this is a valid pair) 4. **Pair D: 8 and 12** - Factors of 8: 1, 2, 4, 8 - Factors of 12: 1, 2, 3, 4, 6, 12 - H.C.F. = 4 (not 3) 5. **Pair E: 4 and 6** - Factors of 4: 1, 2, 4 - Factors of 6: 1, 2, 3, 6 - H.C.F. = 2 (not 3) **Conclusion for Problem 10:** The pair that represents the two numbers with H.C.F. of 3 is **C. 9 and 15**. --- ### Problem 11: Finding a value that is $80 more than 25% of 500 **Step 1:** Calculate \( 25\% \) of 500. \[ \text{Value} = 0.25 \times 500 \] **Step 2:** Find the value that is $80 more than this result. **Calculating:** \[ \text{Value} = 0.25 \times 500 = 125 \] \[ \text{Value} + 80 = 125 + 80 = 205 \] **Step 3:** Check which option is greater than 205. - A. 195 (not greater) - B. 2205 (greater) - C. 225 (greater) - D. 230 (greater) - E. 240 (greater) **Conclusion for Problem 11:** The answer is **B. 2205**. --- ### Problem 12: Converting $32.08 to kobo **Known Condition:** 1 dollar = 100 kobo. **Step 1:** Convert $32.08 to kobo. \[ \text{Kobo} = 32.08 \times 100 \] **Calculating:** \[ \text{Kobo} = 3208 \] **Conclusion for Problem 12:** The answer is **D. 3,208**. --- ### Problem 13: Finding how many NIO.00 make 211,000.00 **Known Condition:** We need to find how many NIO.00 make up 211,000.00. **Step 1:** Since NIO.00 is the same as 1, we can directly calculate: \[ \text{Number of NIO.00} = 211,000.00 / 1 \] **Calculating:** \[ \text{Number of NIO.00} = 211,000 \] **Conclusion for Problem 13:** The answer is **211,000**. --- ### Summary of Answers: - Problem 10: C. 9 and 15 - Problem 11: B. 2205 - Problem 12: D. 3,208 - Problem 13: 211,000