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27 Nov 2024, 01:30
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Difficulty:
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68% (01:54) correct
32%
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A jar contains red and green marbles, available in two sizes- small and big. 20% of the marbles are red and 60% of the marbles are small. How many small green marbles does the jar contain?
(1) The total number of green marbles is 80.
(2) 10% of total marbles in the jar are small and red
(1) The total number of green marbles is 80.
(2) 10% of total marbles in the jar are small and red
13 Dec 2024, 12:35
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A jar contains red and green marbles, available in two sizes- small and big. 20% of the marbles are red and 60% of the marbles are small. How many small green marbles does the jar contain?
(1) The total number of green marbles is 80.
(2) 10% of total marbles in the jar are small and red
Now we are given all values in % no whole nos. Let total marbles be x
1) With first we can find the value of x As 0.8x = 80 so x = 100 but we have no idea of green and small
A
2) This tell us
But no idea on Green and small yet
Put both together now we have value of X and we know that small and green is 0.5x hence C is sufficient
(1) The total number of green marbles is 80.
(2) 10% of total marbles in the jar are small and red
| R | G | Total | |
| S | 0.6x | ||
| L | 0.4x | ||
| Total | 0.2x | 0.8x | x |
Now we are given all values in % no whole nos. Let total marbles be x
1) With first we can find the value of x As 0.8x = 80 so x = 100 but we have no idea of green and small
A
2) This tell us
| R | G | Total | |
| S | 0.1x | 0.5x | 0.6x |
| L | 0.4x | ||
| Total | 0.2x | 0.8x | x |
But no idea on Green and small yet
Put both together now we have value of X and we know that small and green is 0.5x hence C is sufficient
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