What will be the ratio of Highest common Factor and Least Common Multiple of two numbers 16 and 20?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 1 : 20.
| Understanding/Application |
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Factors of 16 = 24 Fcators of 20 = 22 × 5 H.C.F is the product of common factors and L.C.M is the product of highest powers of all factors. |
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L.C.M of (16, 20) = 24 × 5 = 80 H.C.F of (16, 20) = 22 = 4 Required ratio = H.C.F/L.C.M = 4 : 80 = 1 : 20 |