Question
A man allocates 12%, 18%, and 20% of his salary to his
three children, P, Q, and R, respectively. The children spend 50%, 60%, and 56% of their received amounts. The difference between the total money left with the children and the man is Rs. 3360. What is the man's salary?Solution
Let the salary of man = 100x He gives 12x, 18x and 20x to children Savings of man = 100x – (12x+18x+20x) = 50x Savings of P = 50% of 12x = 6x Savings of Q = 40% of 18x = 7.2x Savings of R = 44% of 20x = 8.8x Total savings of P, Q and R = 6x+7.2x+8.8x = 22x Difference = 3360 50x-22x = 3360 28x = 3360 X = 120 Total salary of man = 100x = 12,000
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...