What is the greatest possible length which can be used to measure exactly the lengths 8 m, 4 m 20 cm and 12 m 20 cm?1
a. 30 cm
b. 25 cm
c. 20 cm
d. 10 cm
Answers
Answered by
5
Answer: 8m = 800cm = 2*2*2*2*2*5*5
4 m 20 cm = 420 cm = 2*2*3*5*7
12m 20 cm = 1220= 2*2*5*61
So common factors in above three are 2*2*5 = 20cm
So, 20 cm is the answer
Step-by-step explanation:
Answered by
1
Answer:
option c ( 20 cm )
greatest possible length which can be used to measure exactly the lengths 8 m, 4 m 20 cm and 12 m 20 cm is 20 cm
Step-by-step explanation:
8 m = 800 cm, 4 m 20 cm = 420 cm , 12 m 20 cm = 1220 cm
The answer is the HCF of 800, 420 , 1220
= 20 cm
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