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A, B and C together can complete a work in 25 days. If the ratio of efficiency of A, B and C is 15, 10, 6 respectively, then in how many days C alone can complete the same work?
Ratio of efficiency of A, B and C = 15 : 10 : 6 Total work = (15 + 10 + 6) × 25 = 31 × 25 = 775
A boy crosses a 300 meters wide road in 30 seconds. What is his speed (in km/hr)?
distance = 300m, time = 30 second
Directions For Questions
The pie chart shows the results of an online survey which asked people about their favorite author. Study the diagram and answer the following question.
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Which author is the favorite of most people surveyed?
Because author B is followed by maximum (500) people.
What is the total number of people who have responded to the survey?
Total number of people who have responded to the survey = A + B + C + D + E + F + G = 300 + 500 + 150 + 400 + 350 + 100 + 450 = 2250
The measure of the central angle of the sector representing number of people whose favorite author is D is _________ degree.
Respondents who say their favorite author is A and those who say their favorite author is B constitute what percent of the total respondents?
Total respondents = 2250 For A = 300, for B = 500 A + B = 300 + 500 = 800
What is the measure of an interior angle of a regular polygon of 10 sides?
Interior angle of a regular polygon
In an election A secured 48% of the total votes and C secured 18% of the total votes. B got the remaining votes of 2720. Find the difference in the number of votes casted to A and C.
A and C together secured = 48% + 18% = 66%
Votes of B = 100% – 66% = 34%
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