Related Questions

In a city 40% of the people have black hair, 25% have black eyes and 10% have both black hair and black eyes. What percentage of the people in the city has neither black hair nor black eyes?
A 35
B 40
C 45
D 50
In a certain city 40% of the people have black hair, 25% have black eyes and 10% have both black hair and black eyes. What percentage of the people in the city have neither black hair nor black eyes?
A 35
B 40
C 45
D 50
Safe bearing capacity of black cotton soil varies from
A 2 to 3 t/m2
B 5 to 7.5 t/m2
C 8 to 10 t/m2
D 10 to 12 t/m2
Black cotton soil of the Deccan region of India is associated with ________ rocks.
A Volcanic rocks
B Plutonic rocks
C Sedimentary rocks
D Hypabysal rocks
Black cotton soil is unsuitable for foundations because its
A Bearing capacity is low
B Permeability is uncertain
C Particles are cohesive
D Property to undergo a volumetric change due to variation of moisture content
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
A basket contains four balls of four diffirent colors -white red, black and green which will be distributed among for persons Rajib, Litu, Simu, and Rida. Rida must not be given the black one. Simu not be given either the black one or the green one. If the above conditions are fulfilled, Which of the following must be true?
A Simu will be given the red one
B Lity will given the black one
C Rida will be given the green one
D All of these
Most stuffed toys are stuffed with industrial cotton. There are stuffed bears and stuffed tigers.Some chairs are stuffed with industrial cotton. If the first three statements are true then which of the following statements must also be true?
A I only
B II only
C II and III only
D I,II and III
Which of the following pavement can be used, for construction on black cotton soils?
A Flexible pavement
B Semi-flexible pavement
C Rigid pavement
D All of the mentioned
Black soils are ideal for cultivation of cotton as
A Their colour is black
B They can retain moisture
C They are made of lava
D They are found on plateau regions

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