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10 Jul 2017, 02:44
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C
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Difficulty:
35%
(medium)
Question Stats:
72% (02:06) correct
28%
(01:47)
wrong
based on 107
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Grass on a lawn grows everyday by a fixed percent of the height on the previous day. However, cows graze and reduce the height of the grass by 1 mm every day. What was the height of the grass on the first day before the cows started grazing? Assume that the cows graze at the end of the day, after which the grass grows in the beginning of the next day.
(1) The grass grows every day by 2 percent of the height on the previous day.
(2) The grass is completely grazed in 3 days.
(1) The grass grows every day by 2 percent of the height on the previous day.
(2) The grass is completely grazed in 3 days.
10 Jul 2017, 03:37
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B
Grass on a lawn grows everyday by a fixed percent of the height on the previous day. However, cows graze and reduce the height of the grass by 1 mm every day. What was the height of the grass on the first day before the cows started grazing? Assume that the cows graze at the end of the day, after which the grass grows in the beginning of the next day.
(1) The grass grows every day by 2 percent of the height on the previous day.
(2) The grass is completely grazed in 3 days.
Grass on a lawn grows everyday by a fixed percent of the height on the previous day. However, cows graze and reduce the height of the grass by 1 mm every day. What was the height of the grass on the first day before the cows started grazing? Assume that the cows graze at the end of the day, after which the grass grows in the beginning of the next day.
(1) The grass grows every day by 2 percent of the height on the previous day.
(2) The grass is completely grazed in 3 days.
11 Jul 2017, 06:27
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Bunuel
Grass on a lawn grows everyday by a fixed percent of the height on the previous day. However, cows graze and reduce the height of the grass by 1 mm every day. What was the height of the grass on the first day before the cows started grazing? Assume that the cows graze at the end of the day, after which the grass grows in the beginning of the next day.
(1) The grass grows every day by 2 percent of the height on the previous day.
(2) The grass is completely grazed in 3 days.
(1) The grass grows every day by 2 percent of the height on the previous day.
(2) The grass is completely grazed in 3 days.
stat 1: grass grows every day by 2% .. no info on absolute values,,hence not suff
stat 2: if the grass is grazed at the end of 3 days... on third day the grass will 1mm before grazing....
on third day morning the grass will be some percent of the previous day..by what percent?? no info..not suff
both combined suff
ans C
