Pens are sold in packs of 8 and notepads are sold in packs of 12. Find the least number of each type that one should buy so that there are equal number of pens and notepads. Why do we take LCM instead of HCF??
Answers
Answer:
Step-by-step explanation:
No of pens in a pack = 8
No of notepads in a pack = 12
Prime factor of 8 = 2×2×2=23
Prime factor of 12 = 2×2×3=22×3
LCM (8,12) = 23×3=24
Therefore, 24 is the least number of packets one must get
Answer:
No of pens in a pack = 8
No of notepads in a pack = 12
Prime factor of 8 = 2×2×2=232×2×2=23
Prime factor of 12 = 2×2×3=22×32×2×3=22×3
LCM (8,12) = 23×3=2423×3=24
Therefore, 24 is the least number of packets one must get
We must find out such type of word problems with LCM only.. There is no word problem in which they ask to find the value with HCF. Just remember if they ask a word problem basing on the chapter on HCF or LCM then in word problems only LCM is used.. If they ask to find the HCF, they ask the direct question to find the HCF of two numbers.
Hope you understand!☺
Have a nice day!❤