Scholars caught marked and released 80 fishes in a pond. Later 100 fishes were caught at random. 40 of them were marked. The number of fishes in the pond is

A study was done on the weights of different types of fish in a pond. A random sample of fish were caught and marked in order to ensure that none were weighed more than once. The sample contained 150 largemouth bass, of which 30% weighed more than 2 pounds. Which of the following conclusions is best supported by the sample data?

Sitting beside a pond, Partha and Tirtha, both were trying to catch fish. Partha caught 5 fishes more than Tirtha. Let us express the number of fishes caught by Partha in terms of the number of fishes caught by Tirtha.

In a pond there are 40 Rau fishes, 25 Bhakua fishes and 20 Chital fishes. Before taking bath Paniram tried a throw of his fishing net in the pond. If one fish was caught in the net in one throw and there are equal possibilities of each fish being caught in the net, then find the probabilities of the fish caught(i) being a Rau fish

In a pond there are 40 Rau fishes, 25 Bhakua fishes and 20 Chital fishes. Before taking bath Paniram tried a throw of his fishing net in the pond. If one fish was caught in the net in one throw and there are equal possibilities of each fish being caught in the net, then find the probabilities of the fish caught(ii) being a Bhakua fish

In a pond there are 40 Rau fishes, 25 Bhakua fishes and 20 Chital fishes. Before taking bath Paniram tried a throw of his fishing net in the pond. If one fish was caught in the net in one throw and there are equal possibilities of each fish being caught in the net, then find the probabilities of the fish caught(iii)being a Chital fish

A pupil's marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by half.The number of pupils in the class is (a) 10 (b) 20 (c) 40 (d) 73

A bakery bakes cake with the expectation that it will earn a profit of 40% by selling each cake at marked price. But during the delivery to the showroom 16% of the cakes were completely damaged and hence could not be sold. 24% of the cakes were slightly damaged and hence could be sold at 80% of the cost price. The remaining 60% of the cakes were sold at marked price. What is the percentage profit in the whole consignment?

A dinner party is to be fixed for a party consisting of 100 pe party 50 do not prefer fish,60 prefer chicken and 10 do not ersons. Inth and 10 do not prefer eite chicken or fish. The number of persons who prefer both fish and chicken (a) 10 (b) 20 (c) 30 (d) 40