CHAPTER-5 ARITHMETIC PROGESSIONS QUESTION -1 Fill in the blanks in the following table, given that a is the first term, d the common difference and an the nth term of the A.P. ANSWER: I. a = 7, d = 3, n = 8, an = ?We know that,For an A.P. […]
CLASS-10 MATH’S EXERCISE 5.1 Q-4
CHAPTER-5 ARITHMETIC PROGESSIONS QUESTION -4 Which of the following are APs? If they form an A.P. find the common difference d and write three more terms. ANSWER: (i) 2, 4, 8, 16 … a2 − a1 = 4 − 2 = 2a3 − a2 = 8 − 4 = 4a4 […]
CLASS-10 MATH’S EXERCISE 5.1 Q-1
CHAPTER-5 ARITHMETIC PROGESSIONS QUESTION -1 In which of the following situations, does the list of numbers involved make as arithmetic progression and why? (i) The taxi fare after each km when the fare is Rs 15 for the first km and Rs 8 for each additional km. (ii) The amount […]
CLASS-10 MATH’S EXERCISE 4.2 Q-2
CHAPTER-4 QUADRATIC EQUATIONS QUESTION -2 Solve the problems given in Example 1 SOLUTION: The problem in example 1 was as follows: Represent the following situations mathematically: (i) John and Jivanti together have 45 marbles. Both of them lost 5 marbles each, and the product of the number of marbles they […]
CLASS-10 MATH’S EXERCISE 4.2 Q-1
CHAPTER-4 QUADRATIC EQUATIONS QUESTION -1 Find the roots of the following quadratic equations by factorisation: ANSWER: Roots of this equation are the values for which i.e., x = 5 or x = −2 Roots of this equation are the values for which i.e., x = −2 or x Roots of […]
CLASS-10 MATH’S EXERCISE 4.1 Q-2
CHAPTER-4 QUADRATIC EQUATIONS QUESTION -2 Represent the following situations in the form of quadratic equations.(i) The area of a rectangular plot is 528 m2. The length of the plot (in metres) is one more than twice its breadth. We need to find the length and breadth of the plot.(ii) The […]
CLASS-10 MATH’S EXERCISE 4.1 Q-1
CHAPTER-4 QUADRATIC EQUATIONS QUESTION -1 Check whether the following are quadratic equations: ANSWER: It is of the form Hence, the given equation is a quadratic equation. It is of the form Hence, the given equation is a quadratic equation. It is of the form Hence, the given equation is not […]