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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?
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?
Below are given statements followed by four conclusions. You have to take the given statements to be true even if they appear to be at variance with commonly known facts, and then decide which of conclusions logically follows from the given statements. Statements: Some TV are LED. Some LED are LCD. All LCD are black. No black is white. Conclusions: I. Some LED are not white. II. Some TV are black. III. All black are LCD. IV. Some black are LCD.
The proposition ‘No red is black’ is equivalent to which of the following propositions? (i) No black is red (ii) All red are black (iii) Some red are not black (iv) Red is not black Select the correct answer from the options given below:
In which of the following case we can surely say that the body A is charged: a) When a positively charged body is kept near to body A and it gets attracted b) When a negatively charged body is kept near to body A and it gets  attracted c) When a positively charged body is kept near to body A and it gets repelled
A body A of mass 6.6 kg which is lying on a horizontal platform 4.5 m from its edge is connected to the end of a light string whose other end is supporting a body of mass 3.2 kg as shown in below figure. If the friction between the platform and the body A is $$\frac{1}{3}$$, the acceleration is
Applied Mechanics and Graphic Statics mcq question image
Statements: Some bottons are black. Some bottons are pink. All black are pearl. Conclusion: I. Some pink are black. II. All black are bottons. III. Some bottons are pearl.
A bag contains black and white balls, such that the probability of picking a black ball is 4/7. If the probability of picking two black balls without replacing the first is 4/13, how many black balls are there in the bag?
In the question below are given some statements followed by some conclusions based on those statements. Take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements. Statements: I. All red are blue. II. No black is red. Conclusion: I. No blue is black. II. Some black are not blue. III. Some blue are not black.
In the following question below are given two statements followed by three conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows the given statements. Statements: (I) All black are walls. (II) All colours are walls Conclusions: (I) Some colours are black. (II) All walls are black. (III) All black are colours.