Related Questions

In three coloured boxes - Red, Green and Blue, 108 balls are placed. There are twice as many balls in the green and red boxes combined as there are in the blue box and twice as many in the blue box as there are in the red box. How many balls are there in the green box ?
A 18
B 36
C 45
D None of these
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 teacher's duty is not just to impart information to the student, but also to rouse their curiosity. Choose the meaning of impart.
A import
B export
C give away
D pass on
A tube filled at one end with mirrors and pieces of coloured glass which shows many coloured patterns when turned
A Kaleidoscope
B Periscope
C Microscope
D Gyroscope
The mixing vat in a factory receives liquid ingredients through six separate value--- labeled R.S.T.U,Y and Z -- each of which has exactly two settings: open and closed.The mixing vat operator must ensure that each valve is set open or closed according to the following conditions: If T is open, both S and Z must be closed, R and Z cannot both be closed at the same time; If Y is closed, Z must also be closed;S and U cannot both be open at the same time. Which of the following, if given to the mixing vat operator as an instruction, would not determine the setting of any other valve ?
A S must be open
B T must be open
C U must be open
There are five persons sitting on a bench. Blue eyed lady sitting in the middle is my mother. At the extreme left, the man with grey hair is my maternal uncle. Lady sitting at the extreme right is having a pimple on her nose and is the wife of person who is sitting between blue eyed lady and grey haired man and has a pointed nose. A lady having marks on her face is the younger sister of the blue eyed lady and sitting on the remaining fifth place. The person having a pointed nose is the son of the blue eyed lady. What is the lady having marks on her face to the man sitting at extreme left ?
A Wife
B Maternal Aunt
C Sister
D Sister-in-law
Addition of __________ to steel can not impart it high strength at elevated temperature.
A Nickel
B Magnesium
C Silicon
D Manganese
Addition of __________ to steel does not impart hardness.
A Nickel
B Copper
C Chromium
D Silicon
The product obtained on mixing calcium oxide with water is called
A Quicklime
B Slaked lime
C Milk of lime
D None of these
Fresh water carrying pipelines in chemical industries are coloured with __________ color.
A Sea green
B Brown
C Yellow
D Red

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