Question
If the ratio of the ages of A and B is 3:5, and after 5
years, the sum of their ages will be 50 years, what are their current ages?Solution
Let the current ages of A and B be 3x and 5x respectively. In 5 years, ages will be 3x + 5 and 5x + 5. Sum of ages after 5 years = (3x + 5) + (5x + 5) = 50. 8x + 10 = 50 → 8x = 40 → x = 5. Current ages: A = 3x = 15 years, B = 5x = 25 years. Correct answer: A) A = 15 years, B = 25 years
Rajesh spent 48% of his monthly income on food and 52% of the remaining of study. If total monthly savings (after spending on food and study) of Rajesh ...
Suyash have total amount of Rs.2700 out of which, he spent 20% on food, 30% of the rest on travelling. Out of remaining amount he spends Rs.870 on misce...
Income of 'A' is Rs. 900 more than that of 'B'. Both spend 40% of their respective incomes. If the savings of 'C' is 30% of his income and is equal to ...
The income of Tina is Rs.20000 and she saves 25% of her income. The savings of Kajal is Rs.1200 more than that of Tina and she spends 50% of her income....
Out of his total income, Rahul spent 25% on rent, 35% of the remaining income on groceries, and saved 60% of the income left after his expenses.
Monthly savings of X is 50% of his monthly income which is Rs. 9000. If ratio of monthly expenditure of Y and X is 15:8 respectively and monthly savings...
The population of town at present is 5000. If males are increased by 6% and females are increased by 14%. Then population will become 5540 after I year....
A and B are two numbers. Their average is 220, and the sum of A and B is 150% of A. What percentage of A is the difference between A and B?
- Two numbers ‘p’ and ‘q’ add up to 840. If ‘p’ is decreased by 5% and ‘q’ is increased by 10%, the values become equal. What is the value of...
The price of wheat has increased by 65%. Rohit has decided to spend only 32% more than what he initially did on buying wheat. What is the percentage dec...
