Telangana SCERT Solution Class VIII (8) Math Chapter 1 Rational Numbers Exercise 1.3
(1) Express each of the following decimal in the p/q form.
(i) 0.57
(ii) 0.176
(iii) 1.00001
(iv) 25.125
(2) Express each of the following decimals in the rational form (p/q).
(i) 0.9
(ii) 0.57
(iii) 0.729
(iv) 12.28
(3) Find (x + y) ÷ (x – y) if
(i) x = 5/2, y = – 3/4
(ii) x = 1/4, y = 3/2
(4) Divide the sum of – 13/5 and 12/7 by the product of – 13/7 and – 1/2.
(5) If 2/5 of a number exceeds 1/7 of the same number by 36. Find the number.
(6) Two pieces of lengths 2 3/5 m and 3 3/10 m are cut off from a rope 11m long. What is the length of the remaining rope?
(7) The cost of 7 2/3 meters of cloth is ₹ 12 3/4. Find the cost per metre.
(8) Find the area of a rectangular park which is 18 3/5 m long and 8 2/3 m broad.
(9) What number should – 33/16 be divided by to get – 11/4?
(10) If 36 trousers of equal sizes can be stitched with 64 meters of cloth. What is the length of the cloth required for each trouser?
(11) When the repeating decimal 10.363636 …. is written in simplest fractional form p/q, find the value of p + q.
Good website