Class 7th maths chapter 13 exercise 13.1

• NCERT Solutions Menu Toggle • NCERT Solutions for Class 12 • NCERT Solutions for Class 11 • NCERT Solutions for Class 10 • NCERT Solutions for Class 9 • NCERT Solutions for Class 8 • NCERT Solutions for Class 7 • NCERT Solutions for Class 6 • NCERT Books • TS Grewal Solutions • MCQ Questions Menu Toggle • NCERT MCQ Question 1. Find the value of (i) 2 6 (ii) 9 3 (iii) 11 2 (iv) 5 4 Answer: (i) 2 6 = 2 x 2 x 2 x 2 x 2 x 2 = 64 (ii) 9 3 = 9 x 9 x 9 = 729 (iii) 11 2 = 11 x 11 = 121 (iv) 5 4 = 5 x 5 x 5 x 5 = 625 Question 2. Express the following in exponential form: (i) 6 x 6 x 6 x 6 (ii) t x t (iii) b x b x b x b (iv) 5 x 5 x 7 x 7 x 7 (v) 2 x 2 x a x a (vi) a x a x a x c x c x c x c x d Answer: (i) 6 x 6 x 6 x 6 = 6 4 (ii) t x t = t 2 (iii) b x b x b x b = b 4 (iv) 5 X 5 X 7 X 7 X 7 = 5 2 X 7 3 (v) 2 x 2 x a x a = 2 2 x a 2 (vi) a x a x a x c x c x c x c x d = a 3 x c 4 x d Question 3. Express each of the following numbers using exponential notation. (i) 512 (ii) 343 (iii) 729 (iv) 3125 Answer: (i) 512 512 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 = 2 9 (ii) 343 343 = 7 x 7 x 7 = 7 3 (iii) 729 729 = 3 x 3 x 3x 3 x 3 x 3 = 3 6 (iv) 3125 3125 = 5 x 5 x 5 x 5 x 5 = 5 5 Question 4. Identify the greater number wherever possible in each of the following. (i) 4 3 or 3 4 (ii) 5 3 or 3 5 (iii) 2 8 or 8 2 (iv) 100 2 or 2 100 (v) 2 10 or 10 2 Answer: (i) 4 3 or 3 4 4 3 = 4 x 4 x 4 = 64 3 4 = 3x3x3x3 = 81 81 > 64 3 4> 4 3 3 4 is greater (ii) 5 3 or 3 5 5 3 = 5 x 5 x 5 = 125 3 5 = 3x3x3x3x3 ...

NCERT Solutions for Class 8 Maths Exercise 13.1 Chapter 13 Direct and Inverse Proportions NCERT Solutions for Class 8 Maths Chapter 13, Direct and Inverse Proportions is a combination of questions and answers for all textbook problems, prepared by BYJU’S subject experts. These NCERT Class 8 exercise questions make students familiar with the various concepts. CBSE Chapter 13 comprises standard questions which consist of various topics carrying different marks, so students must be well aware of all concepts to score well. Download mathematics Download PDF carouselExampleControls112 Previous Next  Access Other Exercise Solutions of Class 8 Maths Chapter 13 Direct and Inverse Proportions Access Answers to NCERT Class 8 Maths Chapter 13 Direct and Inverse Proportions Exercise 13.1 Page number 208 1.Following are the car parking charges near a railway station upto: 4 hours  Rs.60 8 hours  Rs.100 12 hours  Rs.140 24 hours  Rs.180 Check if the parking charges are in direct proportion to the parking time. Solution: Charges per hour: C1 = 60/4 = Rs. 15 C2 = 100/8 = Rs. 12.50 C3 =  140/12 = Rs. 11.67 C4 = 180/24  = Rs.7.50 Here, the charges per hour are not the same, i.e., C1 ≠C2 ≠C3 ≠C4 Therefore, the parking charges are not in direct proportion to the parking time. 2. A mixture of paint is prepared by mixing 1 part of red pigments with 8 parts of the base. In the following table, find the parts of the base that need to be added. Solution: Let the ratio of parts o...

Punjab State Board PSEB Solutions for Class 7 Maths Chapter 13 Exponents and Powers Ex 13.1 1. Fill in the blanks : (i) In the expression 3 7, base = …………….. and exponent = …………….. (ii) In the expression \(\left(\frac\) Categories Post navigation

The RD Sharma Class 7 Chapter 13 Simple Interest Ex 13.1 Solutions has been put together by Mathematics experts. Teachers have written the steps of solving each question of the exercise 13.1 from chapter Simple Interest. Also this RD Sharma Solutions for Class 7 Simple Interest Exercise 13.1 PDF Download Link– RD Sharma Solutions for Class 7 Simple Interest Exercise 13.1 PDF You can also check and download the PDF of RD Sharma Solutions Class 7 Chapter 13 Simple Interest Exercise 13.1 RD Sharma Class 7 Chapter 13 Simple Interest Solutions Simple Interest is an important portion to study in class 7 mathematics. While you learn all about Simple Interest with the RD Sharma Maths book. Then when you solve exercises, you get even better in applying the concepts of Simple Interest you learn in Chapter 13. Thus we encourage you to solve questions and MCQs. Following are all • • RD Sharma Class 7 Solutions You study several chapters in class 7 maths from the RD Sharma book, besides Simple Interest. Therefore you must be requiring RD Sharma Solutions for other chapters too. Following are all chapters solutions. • • • • • • • • • • • • • • • • • • • • • • • • • RD Sharma Solutions RD Sharma books are synonymous with being one of the best maths books in India. To help students with the exercises, we have published • • • • • NCERT Solutions Class 7 Maths Chapter 13 Both NCERT and RD Sharma books are important to cover class 7 maths syllabus. Key points about • The NCERT Solutions for ...

ML Aggarwal CBSE Solutions Class 7 Math 13th Chapter Perimeter and Area Exercise 13.1 (1) ABCD is a square of side 24 cm. EF is parallel to BC and AE = 15 cm. By how much does (i) the perimeter of AEFD exceed the perimeter of EBCF? (ii) thew area of AEFD exceed the area of EBCF? Solution: (2) Nagma runs around a rectangular park 180 m long and 120 m wide at the rate of 7.5 km/hour. In how much time will she complete five rounds? (3) The area of a rectangular is 540 meter square. If its length is 27 m, find its breadth and perimeter. Solution: (4) The perimeter of a rectangular field is 151 m. If its breadth is 32 m, find its length and area. (5) The area of a rectangular is 340 meter square and its breadth is 17 m. Find the cost of surrounding the plot with a fence at Rs. 5.70 per metre. Solution: (6) The area of a square park is the same as that of a rectangular park. If the side of the square park is 60 m and the length of the rectangular park is 90 m, find the breadth of the rectangular park. (7) A wire is in the shape of a rectangle. Its length is 40 cm and breadth is 22 cm. If the same wire is rebent in the shape of a square, what will be the measure of each side? Also find which shape encloses more area and by how much? (8) A door of breadth 1 m and height 2 m is fitted in a wall . The length of the wall 4.5 m and height is 3.6 m. Find the cost of white washing the wall, if the rate of white washing the wall is Rs. 20 per meter square. Solution: (9) A rectangular par...