Related Questions

The ratio of green marbles to red marbles in a box is 3:5. If there are 24 marbles in the box, how many additional green marbles will be required to make the ratio of green marbles to red marbles 1:1?
A 12
B 9
C 6
D None of the above
A jar contains 10 red marbles and 30 green marbles . How many red marbles must be added to the jar so that 60% of the marbles will be red ?
A 25
B 35
C 40
D 60
A jar contains only marbles of three colors : red, green and yellow. The red and green marbles are in the ratio of 2 : 5 and the yellow and red marbles are in ratio of 5 : 6. which of the following could be the total number of marbles?
A 52
B 64
C 100
D None of these
12 marbles are selected at random form a large collection of white , red, green and yellow marbles . The number of marbles of each color is unlimited. Find the probability that the selection contains at least one marble of each color ?
A 3491
B 2331
C 3691
D 3391
A jar contains white, red and green marbles in the ratios 2 : 3 : 5 six more green marbles are added to the jars and then the ratio becomes 2 : 3: 7 Hoe may white marbles are there in the jar?
A 5
B 6
C 9
D 10
A man has 72 green marbles and 108 red marbles. He decides to pack them into packets of the same size, each containing either all red or all green marbles. What is the greatest number of marbles he can put in each packet?
A 36
B 24
C 18
D 32
A man has 72 green marbles and 108 red marbles. He decides to pack them into packets of the same size, each containing either all red of all green marbles. What is the maximum number of marbles he can put in each packet?
A 36
B 24
C 18
D 12
A Jar contains white, red and green marbles in the ratios 2: 3: 4. Five more green balls are added to the Jar and the ratios become 2: 3: 5. How many white balls are there in the Jar?
A 4
B 6
C 8
D 10
There are 87 balls in a jar. Each ball is painted with at least one of two colors, red or green. It is observed that 2/7 of the balls that have red color also have green color, while 3/7 of the balls that have green color also have red color. what fraction of the balls in the jar has both red and green colors?
A 6/14
B 2/7
C 6/35
D 6/29
A box contains 200 marbles, 25% of which are of black colour. Babu took some marbles from the box found that 30% of them are black. Of the remaining marbles, 10% were black marbles. How many marbles did Babu take?
A 120
B 125
C 150
D None of these

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