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Select the correct differences between char and varchar data types? i. varchar is non unicode and char is unicode character data type ii. char is ‘n’ bytes whereas varchar is actual length in bytes of data entered in terms of storage size iii. varchar is variable in length and char is the fixed length string iv. For varchar, if a string is less than the maximum length then it is stored in verbatim without any extra characters while for char if a string is less than the set length it is padded with extra characters to equalize its length to given length
In a class, 24 students have scored more marks than Vineet, whereas 19 students have scored lesser marks than Surbhi. Arti has scored more marks than Surbhi, but lesser marks than Vineeet. Arti has scored lesser marks than 29 students and more marks than 26 students. How many total students are there in the class ?
Two centrifugal pumps P and R are available for use in a pipe flow system and their head-discharge characteristics are as follows. Pump P Pump R Discharge (cumecs) Head (m) Discharge (cumecs) Head (m) 0 40 0 45 0.12 35 0.14 40 0.2 28 0.24 35 0.3 18 0.3 28   The following statements (S1, S2, and S3) pertain to the head and discharge values during actual operation. Neglect losses in the system. Which of the following statements are correct? S1: When the two pumps P and R are connected in parallel, the discharge is 0.36 cumecs corresponding to a head of 35 m. S2: When the two pumps P and R are connected in parallel, the discharge is 0.36 cumecs corresponding to a head of 70 m. S3: When the two pumps P and R are connected in series, the discharge is 0.3 cumecs corresponding to a head of 46 m.
Consider the following statements regarding the difference between tropical and extra-tropical cyclones and choose the correct option from the alternatives given below: 1. Extra-tropical cyclones cover a larger area as compared to the tropical cyclones 2. Extra-tropical cyclones originate both over land as well as sea whereas tropical cyclones originate only over sea 3. The wind velocity in a tropical cyclone is much higher and destructive as compared to the extra-tropical cyclones
A trader sells two brands of petrol; one is Extra Premium and other one is speed. He mixes 12 litres Extra Premium with 3 litres of speed and by selling this mixture at the price of Extra Premium he gets the profit of 9.09. If the price of Extra Premium Rs. 48 per litre, then the price of Speed is:
A database of research articles in a journal uses the following schema. (VOLUME, NUMBER, STARTPAGE, ENDPAGE, TITLE, YEAR, PRICE) The primary key is (VOLUME, NUMBER, STARTPAGE, ENDPAGE) and the following functional dependencies exist in the schema. (VOLUME, NUMBER, STARTPAGE, ENDPAGE) → TITLE (VOLUME, NUMBER) → YEAR (VOLUME, NUMBER, STARTPAGE, ENDPAGE) → PRICE The database is redesigned to use the following schemas. (VOLUME, NUMBER, STARTPAGE, ENDPAGE, TITLE, PRICE) (VOLUME, NUMBER, YEAR) Which is the weakest normal form that the new database satisfies, but the old one does not?  
In case of joint products, the main objective of accounting of the cost is to apportion the joint costs incurred up to the split off point. For cost apportionment one company has chosen Physical Quantity Method. Three joint products ‘A’, ‘B’ and ‘C’ are produced in the same process. Up to the point of split off the total production of A, B and C is 60,000 kg, out of which ‘A’ produces 30,000 kg and joint costs are Rs 3,60,000. Joint costs allocated to product A is.
Four siblings of a joint family want to share sweets. They decided that the youngest would get the extra sweet. Swati is two months older than Ganesh, who is three months younger than Neela. Kashi is one month older than Ganesh. Who will get the extra share of sweets? 
Xavier scored 52 marks in a 100-mark test. Tom scored 7 marks more than Xavier but 5 marks lesser than Steve. Roger scored 5 marks lesser than Peter, and 6 marks more than Steve. Who scored the second lowest marks in the given test?
Zan scored 33 marks in a 50-mark test. Tim scored 3 marks more than Zan but 5 marks lesser than Sandra. Ricky scored 4 marks more than Philip, but 6 marks lesser than Sandra. Who scored the lowest marks in the given test?