Question

7.
The length, breadth and height of a room are 8.25 m, 6.75 m and 4.50 m
respectively. Determine the longest tape which can measure the three dimensions
of the room exactly.​

Answer 1

Answer:

To determine the longest tape

Step-by-step explanation:

8.25m= 825 cm

6.75m=675cm

4.50m=450 cm

so find the H.C.F

So, H.C.F will be 75

Therefore, 75m or 750 cm is the longest tape which can measure the three dimensions of the room exactly.

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Answer 2

$➪ \sf \red{Answer:-}$

$\huge{ ➫} \tt GIVEN:-$

$length \: of \: room \: = 7m25cm = 725cm \\ breadth \: of \: room \: = 9m25cm = 925cm \\ height \: of \: room \: = 8m25cm = 825cm$

$\huge ➫ \sf FIND:-$

$now \: we \: find \: HCF \: of \: 725,925 \: and \: 825$

${\huge ➫ {\mathfrak{Solution:-}}}$

$725 = 5 \times 5 \times29 \\ 925 = 5 \times 5 \times 37 \\ 825 = 3 \times 5 \times 5 \times 11 \\ \\ so, \: heighest \: common \: factor \: is \: 5 \times 5 = 25 \\ therefore \: HCF \: of \: 725,925,825 \: is \: 25. \\ \therefore 25m is \: the \: longest \: tape \: measure \: which \: can \: measure \: all \: the \: dimensions.$

$so, \: answer \: is \: \boxed{ \mathfrak{ 25m}}$