Question
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 2 red balls or at least 4 green balls or at least 5 blue balls are picked?Solution
If we pick at least 1 red ball, 3 green balls and 4 blue balls from the box, the total number of balls picked from the box will be 8. If one more ball is picked from the box, irrespective of what it is, it can be said that at least 2 red balls or at least 4 green balls or at least 5 blue balls have been picked from the basket. Hence, required number of balls = 8 + 1 = 9
When a number is divided by 114, remainder is 82. What will be the remainder when the cube of the number is divided by 19?
There are 8 classrooms, each with an average of 16 students. No classroom has the same number of students, and all classrooms, except the 8th one, have ...
- What is the largest value of 'k' that makes the number '415k27' divisible by 3?
If the numerator of a fraction is increased by 300% and the denominator is increase by 600%.The resultant fraction is 1/2. What was the original fraction?
Mohit purchased some toffees at a rate of Rs 20 for every 50 toffees. Additionally, he bought twice as many toffees at a price of Rs 1.50 per piece. He ...
If 893x2 is divisible by 56, and x > 6, find x.
If 1/7 of a number is subtracted from the number, the result is 30 less than the number. Find the number.
Some books were distributed among (2x + 4) students such that each student received 5 books. If there had been 6 students more, then books received by e...
Manas ordered 6 Levis jeans and some additional Blackberry jeans. The price of one Levis jeans was twice that of one Blackberry jeans. When the order wa...
Find the range of the given data:
65, 85, 45, 20, 35, 90, 100, 60, 55
Relevant for Exams:
