Question

Find HCF of 20 50 and 90

Answer 1

Answer: 10

Step-by-step explanation: 20 =2 x 2 x 5

                                            50= 2 x 5 x 5

                                            90=2 x 3 x 3 x 5

Therefore HCF= 2 x 5=10

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Answer 2

Answer:

The HCF of 20, 50, 90 is 10

Step-by-step explanation:

50 divided by 20

20 | 50 | 2

-40

___

10 | 20 | 2

-20

__

0

10 | 90 | 9

-90

__

0

So the HCF of 20, 50 and 90 is 10.

( Division method )