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(i) If ad > bc, then, (iii) T, a, C, d., th, (ii) If ad < bc, then, (iv) T, 3., a, (iii) If ad = bc, then, C, [Note, b., d, quant, same, PRACTICE SET 4.2, (Textbook pages 63 and 64), is to, Solut, a, 1. Using the property, b., ak, fill in the blanks substi-, bk, (i), %3D, tuting proper numbers in the following., bas si, (i), 35, 28, 3.5, 9., (ii), 14, 4.5, Ans., 42, 3.5, Solution :, (ii), 5 x 4 20 boo vg.ol, 5, (i), 7, ......, 28, 7 x 4, 28, 5 x 7, 7 x 7, 35, 35, %3D, 49, ......, 1, 5 x, 2.5, 7, 3.5, 7 x, 3.5, 20, 35, 2.5, Ans, Ans., 28, 49, 3.5, (iii, nothaloe., 9 x, 4.5, 4.5, (ii), 001, %3|, 14 x -, 9., 9 x 3, 27, ......, 14, 42, 14 x 3, 42, Ar, 6., 9 x -, 4., 2.25, 1o (iv, 14, 3.5, 1, 14 x -, 3.5, 4.5 27, 2.25, Ans., 7 42, 3.5, 62, NAVNEET MATHEMATICS DIGEST (P, 112, 112, n IN, 94, 914