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The proposition ‘All birds are cows’ is equivalent to which of the following propositions? a) Some cows are birds b) Some cows are not non-birds c) Some birds are cows d) Many birds are cows
Which one of the following sets is incorrect to show the inter-relationships among price elasticity coefficient, change in price and change in total revenue ? Price elasticity coefficient Change in price Change in Total Revenue 1) Zero Increase Decrease Increase Decrease (2) Less than 1 Increase Decrease Decrease Increase (3) Equal to 1 Increase Decrease No change No change (4) More than 1 Increase Decrease Decrease Increase  
Indian milk market contains two types of products cow’s milk and buffalo’s milk. Commercial milk should have 80% milk. The cost of commercial milk of cow and buffalo cost Rs. 20 and Rs. 15 per liter respectively. At market both can be sold at 60% profit. A milkman who sells 70% milk as 80% and also mixes cow and buffalo in the ratio 3 ∶ 4 and sells it as cow milk. What is the profit (%) he earns?
A milk seller bought certain quantity of pure milk. He first sold 20 litres of pure milk. He added 20 litres of water to the remaining quantity of milk. He then sold 20 litres of the milk water mixture and added 20 litres of water to the mixture. He again sold 20 litres of this milk water mixture and added 20 litres of water to the mixture. Now, the ratio of milk to water is 8 : 19. How much quantity of pure milk in litres did he buy in the first place?
Given below are two quantities named A & B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers. Quantity A: Four herdsmen rented a pasture. A's 9 cows grazed on the pasture for 8 months; B's 10 cows for 5 months; C's 14 cows for 10 months and D's 7 cows for 9 months. If A's share in rent was Rs. 720, the total rent (in Rs.) of the pasture was? Quantity B: A alone can paint a building in 15 days and B can do the same work in 20 days. Both were jointly hired to do the work for Rs. 6000. After 3 days B left and C joined who performed 1/3 of the remaining work. Calculate the wage of A.
A farmer divides his herd of 140 cows among his four sons such that the ratio in which 3 sons get the cows is 1/2 : 1/4 : 1/5 the fourth son gets 7 cows. How many cows are received by first son?
25 cows can graze the ground in 15 days. After 5 days some cows got ill and stayed back at the shed. If the remaining ground was completely grazed by the remaining cows in 25 days, find how many cows were ill and stayed back in the shed after 5 days?
Consider the given statements and decide which of the given conclusions do NOT follow from the statements. Statements: All Bulls are Black but not Cows. All Cows are Black. Conclusions: 1. Some Cows are Bulls. 2. All Blacks are Cows. 3. All Blacks are Bulls.
In the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion/conclusions logically follows/follow the given statements. Statements: (A) Some cars are guns. (B) All horses are guns. (C) All guns are cows. Conclusions: I. Some cows are cars. II. Some cows are horses. III. Some cows are guns.
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow from the statements Statements: All ducks are tigers. All tigers are monkeys. All monkeys are cows. Conclusions: I. All tigers are cows. II. All monkeys are ducks. III. All ducks are cows. IV. All cows are tigers.