Amit needs a wooden plank of height 8/9m. He joined two wooden planks of height 3/5m and 2/9. He has a third plank of height 12/16m. would he meed to use the third plank? if so what would the length of the third plank needed be.
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Amit needs a wooden plank of height 8/9m. He joined two wooden planks of height 3/5m and 2/9. He has a third plank of height 12/16m. would he meed to use the third plank? if so what would the length of the third plank needed be.
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Answer:
amit needs a wooden plank
height =8/9 m
he also join heights of two wooden planks
so, the total height = 3/5+2/9 = 37/45
comparing,
the height who need amit = total heights of two planks
I. e, 8/9 = 37/45
40/45>37/45 ( same denominator)
so, he want another one plank that's height is,
37/45+3/45 = 40/45 = 8/9
so, the solution is 3/45m or 1/15 m
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