Question
Which of the following is an example of using a sample
to make inference about a population?Solution
The correct answer is A
In what ratio must a person mix three kinds of rice costing him Rs 1.16,Rs 1.40 and Rs 1.72 per Kg so that the mixture may be worth Rs 1.37 per Kg?
A merchant has 1200 kg of sugar, part of which he sells at 9% profit and the rest at 15% profit. He gains 11% on the whole. The quantity (in kg) sold at...
A sum of ₹ 62 was divided among 100 students. If each boy got 70 paisa and each girl got 45 paisa. Find the number of boys?
A trader mixes two types of rice varieties with a cost of Rs.68 and Rs.80. If he sells the mixture of Rs.88 at 25% profit, in what ratio he mixes two ty...
In what ratio rice at 50 Rs/kg should be mixed with the rice at 36 Rs/kg so that selling mixture at Rs 48 per kg gives the profit of 20% if the quantity...
The ratio of milk and water in a mixture of 80 litre is 3:2. If some quantity of mixture taken out and then 4 litre of milk and 4 litre of water is adde...
The cost of type 1 tea is Rs 20 per Kg and type 2 tea is Rs 30 per Kg. If both type1 and type 2 are mixed in the ratio of 3:2,then the price per Kg of t...
A shopkeeper mixes two varieties of rice costing Rs 48 per kg and Rs 60 per kg to get a mixture worth Rs 55 per kg. In what ratio (by weight) should he ...
There are three mixtures A, B and C. Mixture A contains 11% of water and B contains 16% of water. If A and B are mixed together than resultant mixture c...
The Price of 1 litre pure milk is Rs 50. By adding some water in it and selling the mixture at Rs 60 one gets 25% profit, then find the ratio of milk a...
