Rational Numbers Exercise 9.1 1). List five rational numbers between: (i) –1 and 0 (ii) –2 and –1 (iii) – 4/5 and -2/3 (iv) -1/2 and 2/3 Answer: (i) -1 and 0 Ans: The five rational numbers between -1 and […]
NCERT Solutions Class 7 Maths Chapter 9 Rational Numbers Exercise 9.1 Read More »
Comparing Quantities Exercise 8.2 1). Convert the given fractional numbers to per cents. (a) 1/8 (b) 5/4 (c) 3/40 (d) 2/7 Solution: (a) 1/8 (b) 5/4 (c) 3/40 (d) 2/7 2). Convert the given decimal fractions to per cents. (a) 0.65 (b) 2.1 (c) 0.02 (d) 12.35 Solution: (a) 0.65 0.65 =
NCERT Solutions Class 7 Maths Chapter 8 Comparing Quantities Exercise 8.2 Read More »
Comparing Quantities Exercise 8.1 1). Find the ratio of: (a) ₹ 5 to 50 paise (b) 15 kg to 210 g (c) 9 m to 27 cm (d) 30 days to 36 hours Solution: (a) ₹5 to 50 paise ₹ 5 = 500 paise ₹ 5 : 50 paise = 500 paise: 50
NCERT Solutions Class 7 Maths Chapter 8 Comparing Quantities Exercise 8.1 Read More »
The Triangle and Its Properties Exercise 6.2 1). Find the value of the unknown exterior angle x in the following diagrams: i). the sum of interior opposite angles = exterior angle 500 + 700 = x 1200 = x x = 1200 ii). the sum of interior opposite angles = exterior angle
NCERT Solutions Class 7 Maths Chapter 6 The Triangle and Its Properties Exercise 6.2 Read More »
The Triangle and Its Properties Exercise 6.1 1). In D PQR, D is the mid-point of QR. PM is _________________. PD is _________________. Is QM = MR? Answer: PM is altitude. PD is median. Is QM = MR? No QM ≠ MR 2). Draw rough sketches for the following: (a) In DABC, BE is a
NCERT Solutions Class 7 Maths Chapter 6 The Triangle and Its Properties Exercise 6.1 Read More »
Lines and Angles Exercise 5.2 1). State the property that is used in each of the following statements? (i) If a || b, then ∠1 = ∠5. (ii) If ∠4 = ∠6, then a || b. (iii) If ∠4 + ∠5 = 180°, then a || b. Answer: (i) If a || b, then ∠1 =
NCERT Solutions Class 7 Maths Chapter 5 Lines and Angles Exercise 5.2 Read More »
Lines and Angles Exercise 5.1 1). Find the complement of each of the following angles: i) 200 ii). 630 iii). 570 Solution: i) 200 let the complementary of 200 be x. x + 20 = 90 x = 90 – 20 x = 70 ii). 630 let the complementary of 630 be x. x
NCERT Solutions Class 7 Maths Chapter 5 Lines and Angles Exercise 5.1 Read More »
Simple Equations Exercise 4.3 1). Solve the following equations: (a) 2 y + 5/2 = 37/2 (b) 5t + 28 = 10 (c) a/5 + 3 = 2 (d) q/4 + 7 = 5 (e) 5/2 x = –5 (f) 5/2 x = 25/4 (g) 7m+ 19/2 =13 (h)
NCERT Solutions Class 7 Maths Chapter 4 Simple Equations Exercise 4.3 Read More »
Simple Equations Exercise 4.2 1). Give first the step you will use to separate the variable and then solve the equation: (a) x – 1 = 0 (b) x + 1 = 0 (c) x – 1 = 5 (d) x + 6 = 2 (e) y – 4 = – 7
NCERT Solutions Class 7 Maths Chapter 4 Simple Equations Exercise 4.2 Read More »