A box contains only three colors of balls- red, green and blue. What is the minimum number of balls that should be picked from the box to ensure that at least 5 red balls or at least 7 green balls or at least 9 blue balls are picked?
If we pick at least 4 red balls, 6 green balls and 8 blue balls from the box, the total number of balls picked from the box will be 18. If one more ball is picked from the box, irrespective of what it is, it can be said that at least 5 red balls or at least 7 green balls or at least 9 blue balls have been picked from the basket. Hence, required number of balls = 18 + 1 = 19
A question is given, followed by three statements I, II and III. Identifry which of the statements is/are sufficient to answer the question.
Ques...
What is the speed of boat in still water?
Statement I: The boat can cover 24 km downstream distance in 4 hours.
Statement II : Speed of...
Calculate the total time it takes for a ship to cover a distance of 120 km downstream and 80 km upstream.
Statement I: The ship can travel 1300...
A rice bag and a wheat bag are the two items. The total cost of the wheat bag and the rice bag is Rs. 4400. The profit margin on the rice bag sale is 20...
How many boys are there in the class?
I. The number of girls is 30% of the number of boys.
II. The ratio of the number of boys to that of girls is 3:5.
A started a business. B joined him after 2 months and C joined him after 3 more months. Find B’s share in the total profit at the end of the year.
...Which one of the following is correct in respect of the statement given below?
Statement 1: 210 is the smallest natural number having...
In an 800-meter race involving 'Amit', 'Bhanu', and 'Chinky', calculate the distance 'Amit' was ahead of 'Chinky'.
Statement I : 'Amit' finishes...
What is the area of a circular field?
I. The area of the largest square that can be inscribed in the given circular field is 450 cm².
II....
In how many days 8 boys and 6 girls can complete the work working together?
Statement I: The ratio of efficiency of boy to girl is 3:1