Question
The ratio of present ages of Ankit to that of Bhavesh is
3:5 while the ratio of present ages of Karan to that of Bhavesh is 2:5. If the age of Karan, 5 years ago from now was 15 years, then find the sum of present ages of Ankit and Bhavesh.Solution
ATQ,
Let the present age of Ankit and Bhavesh be '3x' years and '5x' years, respectively.
So, present age of Karan = 2/5 × 5x = 2x years
Karan's present age = (15 + 5) = 20 years.
So, 2x = 20
Or, x = 10
Required sum = (3x + 5x) = (8x) = (8 × 10) = 80 years
A bag contains black and white balls, such that the probability of picking a black ball is 4/7. If the probability of picking two black balls without re...
A jar contains 6 pink, 2 black and 4 orange balls. If 3 balls are chosen at random without replacement, what is the probability that all 3 balls are of ...
A bag contains 3 black and 9 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
"A piggy bank comprises 5-rupee coins, 10-rupee coins, and 20-rupee coins. The quantity of 5-rupee coins in the piggy bank is 75% more than the number o...
- A jar contains six 50 paise coins, six Rs. 1 coins, and twelve Rs. 10 coins. One coin is lost. Find the probability that the lost coin is not a 50 paise co...
- Bag A contains 3 red, 4 black, 8 blue and 5 yellow balls. Bag B contains 5 red, 2 black, 4 blue and 3 yellow balls. Find the probability of drawing 2 blue ...
A box contains (x + 3) black balls, 6 yellow balls, and 5 orange balls. If two balls are selected at random and the probability of selecting two orange ...
Which of the following cannot be the probability of an event?
Find the probability that a number selected at random from first hundred number is a multiple of 3 or 5?Â
A game consists of tossing three coins once and then rolling two dice. Find the probability of getting exactly one tail in the coin toss and a sum equal...
Relevant for Exams:
