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Find the greatest number that will divide 448, 525, 720 and leaves the

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| Find the greatest number that will divide 448, 525, 720 and leaves the remainder 11, 12 and 17 respectively.

A. 17

B. 19

C. 23

D. 25

Right Answer is: B

SOLUTION

Required number = HCF of (448 – 11, 525 – 12, 720 – 17)

= HCF of (437, 517, 703)

We get the HCF by factorization method:

437 = 19×23

513 = 19×3×3×3

703 = 19×37

We will get 19 as HCF which be the required number.

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    1. Find the greatest number that will divide 448, 525, 720 and leaves the

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