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Then breadth = 3x ∴Perimeter = 2(l + b) 400 = 2(5x + 3x) 400 = 2 x 8x= 16x ∴16x = 400 ⇒ x = $$\frac { 400 }{ 16 }$$ = 25 ∴Length of the land = 5x= 5 x 25 = 125 m and breadth = 3x = 3 x 25 = 75 m, Question 8. The questions are answered in a step-by-step and easy to understand manner. issues. You can download the Selina Concise Mathematics ICSE Solutions for Class 7 with Free PDF download option. Our Maths tutors have helped us put together this for our Class 7 Students. The radii of two circles are in the ratio 3 : 5, find the ratio between their circumferences. Concepts covered in Recognition of Solids (Representing 3-D in 2-D) are Concept for Mapping the Space Around Approximately Through Visual Estimation., Concept of Recognition of Solids, Faces, Edges and Vertices. 22 and loss = 12% (iii) S.P. Find the cost price, if: (i) S.P. (ii) the radius of the outer circumference. 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One side of a parallelogram is 20 cm and its distance from the opposite side is 16 cm. Find the perimeter of a rectangle with length = 24 cm and diagonal = 25 cm Solution: Length of a rectangle (l) = 24 cm Diagonal = 25 cm Let breadth of the rectangle = b m Applying Pythagoras Theorem in triangle ABC, We get, (AC)2 = (AB)2 + (BC)2 (25)2 = (24)2 + (b)2 625 = 576 + (b)2 625 – 576 = b2 49 = A2 $$\sqrt { 7 x 7 }$$ =b ∴b = 7 cm Now, perimeter of the rectangle = 2(1 + b) = 2(24 + 7) = 2(31) = 62 cm, Question 7. Selina Class 7 Maths ICSE Solutions Physics Chemistry Biology Geography History & Civics are the best Selina 12 Maths solution options on the market. Answer: … Selina Solutions Concise Maths Class 7 Chapter 10 Simple Interest helps students understand the method of finding interest in the given set of problems, according to ICSE syllabus. Simple Linear Equations ICSE Class-7th Concise Selina mathematics Solutions Chapter-12. 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You can also share our link for free Class 7 Mathematics Selina solutions with your classmates. The updated solutions … Question 1. Selina Publishers Concise Mathematics Class 7 ICSE Solutions Chapter 14 Lines and Angles (Including Construction of angles) Lines and Angles Exercise 14A – Selina Concise Mathematics Class 7 ICSE Solutions. If this perimeter is equal to the circumference of a circle, find the radius of the circle. Find the length of the wire. Solution: Let the side of first square = 8x ∴Perimeter of first square = 4 x Side = 4 x 8x = 32 x and the side of second squares = 15x ∴Perimeter of second square = 4 x Side = 4 x 15s = 60s Now, the ratio between their perimeter = 32x: 60x= 8: 15. Solution: Question 3. Question 25. Concepts covered in Percent and Percentage are Concept for Understanding Percentage as a Fraction with Denominator 100, Concept of Percent and Percentage, Converting Decimals to Percentage, Converting Fractional Numbers to Percentage, Shaalaa has a total of 55 questions with solutions for this chapter in Class 7 Maths. A wire is in the shape of square of side 20 cm. Make the greatest and the smallest 4-digit numbers using the digits 5, 4, 7 and 9 (without repeating the digits) and with the condition that: (i) 7 is at unit’s place. 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Shaalaa has a total of 82 questions with solutions for this chapter in Class 7 Maths. (ii) A ray has one end point and a line segment has two end-points. Selina ICSE Class 10 Maths solutions Chapter 1 explain the ways to compute profit, loss, discounts, cost price, list price and more. Find die cost of 17.5 m cloth at the rate of Rs. Education Franchise × Contact Us. Also, find the cost of fencing it @ ₹150 per m. Solution: Given : Perimeter = 440 m Let the length of rectangular field = lx and breadth = 4x 2(l + b) = Perimeter 2(7x + 4x) = 440 m 2(11x) = 440 m 22x = 440 m x = $$\frac { 440 }{ 22 }$$ x = 11 m ∴Length = 7x = 7 x 11 = 77 m Breadth = Ax = 4 x 11 = 44 m Cost of fencing per m = ₹150 Cost of fencing 440 m = ₹150 x 440 = ₹66,000. Find the radius of the circle. The circumference of a circle is 440 cm. 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