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Given Sara’s age today to be y years. Think of her age in the future or in the past. What will the following expression indicate? y + 7,y – 3,y +4 1/2,y – 2 1/2.-Mathematics-cbse-std 6th-Algebra1 Answer Given n students in the class like football, what may 2n show? What may n/2 show? (Hint : Think of games other than football).-Mathematics-cbse-std 6th-Algebra1 AnswerA bus travels at v km per hour. It is going from Daspur to Beespur. After the bus has travelled 5 hours, Beespur is still 20 km away. What is the distance from Daspur to Beespur? Express it using v.-Mathematics-cbse-std 6th-Algebra1 AnswerThe teacher distributes 5 pencils per student. Can you tell how many pencils are needed, given the number of students? (Use s for the number of students.)-Mathematics-cbse-std 6th-Algebra3 AnswerMother has made laddus. She gives some laddus to guests and family members; still 5 laddus remain. If the number of laddus mother gave away is l, how many laddus did she make?-Mathematics-cbse-std 6th-Algebra1 Answer(a) Given Munnu’s age to be x years, can you guess what (x – 2) may show? (Hint : Think of Munnu’s younger brother.) Can you guess what (x + 4) may show? What (3 x + 7) may show?-Mathematics-cbse-std 6th-Algebra2 AnswerA bird flies 1 kilometer in one minute. Can you express the distance covered by the bird in terms of its flying time in minutes? (Use t for flying time in minutes.)-Mathematics-cbse-std 6th-Algebra1 Answer(a) Form expressions using t and 4. Use not more than one number operation. Every expression must have t in it. (b) Form expressions using y, 2 and 7. Every expression must have y in it. Use only two number operations. These should be different.-Mathematics-cbse-std 6th-Algebra1 AnswerWhat are the unary operations in Relational Algebra?Database-Management-System1 AnswerRadha is drawing a dot Rangoli (a beautiful pattern of lines joining dots with chalk powder. She has 9 dots in a row. How many dots will her Rangoli have for r rows? How many dots are there if there are 8 rows? If there are 10 rows?-Mathematics-cbse-std 6th-Algebra1 AnswerA rectangular box has height h cm. Its length is 5 times the height and breadth is 10 cm less than the length. Express the length and the breadth of the box in terms of the height-Mathematics-cbse-std 6th-Algebra1 AnswerThe length of a rectangular hall is 4 meters less than 3 times the breadth of the hall. What is the length, if the breadth is b meters?-Mathematics-cbse-std 6th-Algebra1 AnswerLeela is Radhas younger sister. Leela is 4 years younger than Radha. Can you write Leelas age in terms of Radhas age? Take Radhas age to be x years-Mathematics-cbse-std 6th-Algebra1 AnswerOranges are to be transferred from larger boxes into smaller boxes. When a large box is emptied, the oranges from it fill two smaller boxes and still 10 oranges remain outside. If the number of oranges in a small box are taken to be x, what is the number of oranges in the larger box?-Mathematics-cbse-std 6th-Algebra1 AnswerWe already know the rule for the pattern of letters L, C and F. Some of the letters from Q.1 (given above) give us the same rule as that given by L. Which are these? Why does this happen?-Mathematics-cbse-class 6th-Algebra1 AnswerMeena, Beena and Leena are climbing the steps to the hill top. Meena is at step s, Beena is 8 steps ahead and Leena 7 steps behind. Where are Beena and Meena? The total number of steps to the hill top is 10 less than 4 times what Meena has reached. Express the total number of steps using s-Mathematics-cbse-std 6th-Algebra1 AnswerWhat is relational algebra in dbms ?2 Answer Which of the following is a fundamental operation in relational algebra ?1 AnswerThe total number of arrangements which can be made out of the letters of the word ALGEBRA without altering the relative position of vowels and consonants is?1 AnswerExplain the syntax of a SELECT statement in SQL. Database Management Systems - 10CS54 VTU notes (MAY/JULY 2013/ 2014) (4 Marks Dec 14/Jan 15) 1 Answer