Question Answers

3.Find the product: (iii) –6/5 × 9/11 3.Find the product: (iii) –6/5 × 9/11 October 9, 2020 Category: Chapter 9 - Rational Numbers , Maths , NCERT Class 7 ,

A cube is shifted to a depth of 100 m in a lake. THe change in volume is 0.1%. THe bullk modulus of the material is nearly A cube is shifted to a depth of 100 m in a lake. THe change in volume is 0.1%. THe bullk modulus of the material is nearly October [...]

3.Find the product: (ii) 3/10×(–9) 3.Find the product: (ii) 3/10×(–9) October 9, 2020 Category: Chapter 9 - Rational Numbers , Maths , NCERT Class 7 ,

The length of a wire is increased by 1mm on the application, of a given load. In a wire of the same material, but of length and radius twice that of the first, on application of the same load, extension is but of length and radius twice that of the first extension is of a [...]

3.Find the product: (i) 9/2×(–7/4) 3.Find the product: (i) 9/2×(–7/4) October 9, 2020 Category: Chapter 9 - Rational Numbers , Maths , NCERT Class 7 ,

1.Find the sum: (vii) –2 1/3 + 4 3/5 1.Find the sum: (vii) –2 1/3 + 4 3/5 October 9, 2020 Category: Chapter 9 - Rational Numbers , Maths , NCERT Class 7 ,

Two wires of the same length and same material but radii in the ratio of 1:2 are stretched by unequal forces to produce equal elongation. The ratio of the two forces is Two wires of the same length and same material but radii in the ratio of 1:2 are stretched by unequal forces to produce [...]

1.Find the sum: (vi) –2/3 + 0 1.Find the sum: (vi) –2/3 + 0 October 9, 2020 Category: Chapter 9 - Rational Numbers , Maths , NCERT Class 7 ,

1.Find the sum: (v) –8/19 + (–2)/57 1.Find the sum: (v) –8/19 + (–2)/57 October 9, 2020 Category: Chapter 9 - Rational Numbers , Maths , NCERT Class 7 ,

1.Find the sum: (iv) –3/–11 + 5/9 1.Find the sum: (iv) –3/–11 + 5/9 October 9, 2020 Category: Chapter 9 - Rational Numbers , Maths , NCERT Class 7 ,