ULU TUHUWING POPUTTUI.
(a) x: 12:14:24 (b) 15: 7:: 60 :X (c) X:6::55:11 (d) 7: 14 = 15:x (0) 18: x= 27: 3
3. Determine if the following are in proportion:
(a) 15, 45, 40, 120 (b) 32, 48, 70, 210 (c) 16, 24, 20,30 (d) 21, 6, 35, 10
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(a) x = 14 * 12 / 24 = 168 / 24 = 7
(b) x= 60 * 7 / 15 = 420 / 15 = 28
(c) x = 55 * 6 / 11 = 330 / 11 = 30
(d) x = 15 * 14 / 7 = 210 / 7 = 30
(e) x = 18 * 3 / 27 = 54 / 27 = 2
3. (a) 15 : 45 :: 40 : 120 ( 1 : 3 :: 1 : 3)
(c) 16 : 24 :: 20 : 30 ( 2 : 3 :: 2 : 3)
(d) 21 : 6 :: 35 : 10 ( 7 :2 :: 7 :2)
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