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Practice Chain Rule – if (2x + 2/x) = 1, then the value of (x^3 + 1/x^3) is

Practice Chain Rule – If (a^2 + b^2 + 1/a^2 + 1/b^2) = 4, then the value of (a^2 + b^2) will be

Practice Chain Rule – (0.1*0.1*0.1 + 0.02*0.02*0.02)/(0.2*0.2*0.2 + 0.04*0.04*0.04) is equal to

Practice Chain Rule – There are two sections in a question paper each contain five questions. A student has to answer 6 questions. Maximum no. of questions that can be answered from any section is 4. How many ways he can attempt the paper?

Practice Chain Rule – If the provisions last for 30 days for 3000 men then if after 10 men are included then the remaining provisions last for how many days?

Practice Chain Rule – If 5 tomatoes are worth 8 oranges,5 oranges are worth 4 apples, 7 apples are worth 3 pineapples and 7 pineapples cost rs.203,then the approx price of each tomato is?

Practice Chain Rule – A man spend 810 in buying trouser at Rs 70 each and shirt at 30 each.What will be the ratio of trouser and shirt when the maximum number of trouser is purchased?

Practice Chain Rule – 6 pigs cost the same as 9 sheep. 27 sheep cost the same as 30 goats. 50 goats cost the same as 3 elephants. If two elephants cost $4800, then the cost of one pig in dollar is ?

Practice Chain Rule – An air conditioner can coo the hall in 40 miutes while another takes 45 minutes to cool under similar conditions. if both air conditioners are switched on at same instance then how long will it take to cool the room?

Practice Chain Rule – A man sells 12 candies for rs12 and loses rs 2.40. if he sells 12 candies for rs 16. how much does he gain or loss?

Practice Chain Rule – In a group of cows and hens, the number of legs are 14 more than twice the number of heads. The number of cows is :

Practice Chain Rule – 3 machines a,b,c can be used to produce a product. Machine a will take 60 hours to produce a million units. Machine b is twice as fast as machine a. Machine c takes the same amount of time as machine a and b taken together. How much time will be required to produce a million units if all the three machines are used simultaneously?

Practice Chain Rule – If the price of 23 balls is 276, then what will the price of 12 balls?

Practice Chain Rule – If 4 spiders make 4 webs in 4 days, then 1 spider will make 1 web in how many days?

Practice Chain Rule – If a quarter Kg of potato costs 60 paise, How many paise will 200 gm cost?