Question
Sum of the present ages of A, B, C and D is 60 years.
After 2 years ratio of their ages is 6:5:2:4. What is Cβs present age?Solution
At present sum of age = 60 years After 2 years sum of age will be, => 6x + 5x + 2x + 4x = 60 + 2 Γ 4 => 17x = 60 + 8 => x = 4 Cβs present age = 2x β 2 = 6 years
Find the simplified value of the given expression:
18 Γ 3 Γ· 6 + 24 Γ· 4 of 2 β 60 Γ· 2 of 3 + 18 Γ 5 Γ· 9.Β
...A bag contains βxβ black balls, βx + 2β red balls and βx + 1β white balls. If the probability of drawing a white ball is 1/36 less than the ...
A bag contains 13 white and some black balls. If the probability of drawing a black ball from the bag is twice that of drawing a white ball, find...
Two cards are drawn at random without replacement from a standard deck of 52 cards. Find the probability that both cards are red
A box holds a total of 'p' purple balls and 5 silver balls. Two balls are drawn sequentially without replacement. The probability that both selected bal...
15 rotten bananas are accidentally mixed with 115 good ones. It is not possible to just look at a banana and tell whether or not it is rotten. One banan...
If an event E has more than one possible outcomes, it is called a ______
A bag contains 15 white and some black balls. If the probability of drawing a black ball from the bag is thrice that of drawing a white ball, fin...
A bag contains 10 white balls, 4 red balls and 6 black balls. Three balls are drawn at random. Find the probability that at least two balls are red.
In a purse, there are 3 two-rupee coins and 4 five-rupee coins. If you randomly select 4 coins from the purse, what is the probability that you will cho...