Question
A, B and C enter into partnership by making investments
in the ratio 3: 5: 7. After a year, C invests another Rs 337600 while A withdraws Rs 45600. The ratio of investments then changes to 24: 59: 167. How much does A invest initially?Solution
Let their investment be =3x, 5x, 7x After a year A investment = 3x - 45600 B investment= 5x C investment =7x + 337600 New ratio = 3x - 45600: 5x (3x-45600)/5x=24/59 x = 47200 So A investment =47200 × 3 =1, 41, 600
16 rotten bananas are accidentally mixed with 155 good ones. It is not possible to just look at a banana and tell whether or not it is rotten. One banan...
10 rotten bananas are accidentally mixed with 140 good ones. It is not possible to just look at a banana and tell whether or not it is rotten. One banan...
What will be the probability of choosing one red and one green ball from a basket containing 4 red and 5 green balls if two balls are drawn randomly?
Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probabili...
John is answering a survey with 3 questions, each with 2 options. Only one option is correct per question. If John answers randomly, what is the probabi...
What is the probability that a number selected from 1,2,3.......................68,69,70, is perfect square or a perfect cube?
A box contains 8 yellow marbles, ‘x’ blue marbles and 12 white marbles. A box contains 5 yellow marbles, 2 blue marbles and 3 white marbles. The pro...
A box contains 5 red, 6 green and 3 yellow balls. 2 balls are drawn at random. What is the probability that they are not of the same colour?
The probability of selecting a rotten egg randomly from a basket of 250 eggs is 0.2. What is the number of rotten eggs in the basket?
A bag contains 13 white and some black balls. If the probability of drawing a black ball from the bag is 3 times that of drawing a white ball, find the ...
