Question
A bag contains (x + 7) small toys, (x + 12) medium toys,
and (x + 17) large toys. The probability of drawing a large toy from the bag is (4/9). Find the number of medium toys in the bag.Solution
According to question, (x + 17)/[(x + 7) + (x + 12) + (x + 17)] = 4/9 Simplify and solve for x: 9(x+17) = 4(3x + 36) 9x +153 = 12x+ 144 12x -9x = 153-144 3x = 9 x= 3 Therefore, number of orange balls in the bag = 3 + 12 = 15
Income of Ravi is Rs. 52,800, out of which he spent 35% on daily expenses, 5% on phone bills and saves the rest. If his income is increased by 15% and h...
A number when reduced by 35% gives 195. Find the number?
In order to maximise his gain, a theatre owner decided to reduce the price of tickets by 10% and as a result of this, the sales of tickets increased by ...
A man donated 10%, 16% and 28% of his income to three NGOs ‘A’, ‘B’ and ‘C’, respectively. They spent 75%, 80% and 50% of respective sums re...
'M', 'N', and 'O' appeared in an exam. 'M' scored 40% marks in an exam which was 20 more than passing marks. Whereas 'N' scored 30% marks in the exam wh...
Raj saves Rs. 4500 more if he spends 65% of his income instead of 80%. Find the savings of Sanjay whose income is 25% more than that of Raj, and spends ...
40 Litres of water is added to 60 litres of a solution containing 40% alcohol . What is the concentration of alcohol in solution now?
Rajesh spent 40% and 20% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 15% and 30% to his mother and brother, r...
Sara has 150 kg of oranges (rotten and fresh). She sold 50% of the total oranges such that out of the remaining oranges, 30% are rotten. Find the percen...
There are 500 students in a college. 45% of them are boys. Among the boys and girls, 35% and 50% respectively are interested in music. How many students...
Relevant for Exams:
