Practice Set: Profit & Ratio (HCF-LCM Type)

Practice Set: Profit & Ratio (HCF-LCM Type)


Questions



  1. If the ratio of two numbers is 3 : 4 and HCF = 5, find LCM.

  2. Ratio = 2 : 7, HCF = 3 → Find LCM.

  3. Ratio = 5 : 9, HCF = 4 → Find LCM.

  4. Ratio = 6 : 11, HCF = 2 → Find LCM.

  5. Ratio = 8 : 3, HCF = 7 → Find LCM.

  6. Ratio = 9 : 10, HCF = 6 → Find LCM.

  7. Ratio = 4 : 15, HCF = 5 → Find LCM.

  8. Ratio = 7 : 12, HCF = 3 → Find LCM.

  9. Ratio = 11 : 13, HCF = 2 → Find LCM.

  10. Ratio = 5 : 8, HCF = 9 → Find LCM.


Mixed Level



  1. Ratio = 3 : 5, HCF = 6 → Find both numbers and LCM.

  2. Ratio = 4 : 7, HCF = 8 → Find LCM.

  3. Ratio = 6 : 13, HCF = 3 → Find LCM.

  4. Ratio = 10 : 11, HCF = 2 → Find LCM.

  5. Ratio = 9 : 14, HCF = 5 → Find LCM.


Advanced (Exam Level)



  1. Two numbers are in ratio 7 : 9 and their HCF is 4. Find LCM

  2. Ratio = 8 : 15, HCF = 6 → Find LCM.

  3. Ratio = 12 : 5, HCF = 7 → Find LCM.

  4. Ratio = 13 : 17, HCF = 3 → Find LCM.

  5. Ratio = 11 : 6, HCF = 8 → Find LCM.


Trick (Remember) : LCM = HCF × (a × b)