A person has Rs 2. He wins or loses Re 1 at a time If he wins he gets Re 1 and if he loses the game he loses Re 1.He can loose only 5 times. He is out of the game if he earns Rs 5. Find the number of ways in which this is possible?
Two varieties of wheat each of price Rs. 50/kg and Rs. 60/kg are mixed in the ratio of 2 : 3 respectively. What must be cost price of the mixture to get a profit of 10%?
How many kilograms of sugar costing Rs. 9 per kg must be mixed with 27 kg of sugar costing Rs. 7 per kg so that there may be a gain of 10 % by selling the mixture at Rs. 9.24 per kg?
a pack contains n cards numbered 1 to n .Two consecutive cards are removed from the pack and sum of remaining card is 1224.If smaller of number on the removed card is k.Find value of k-20