a) 19.7cm, 70.3 cm
b) 23.4 cm, 68.7 cm
c) 25.7 cm, 64.3 cm
d) 21.1 cm,63.2 cm
Answer: c
Explanation: D1 + D2 = 90cm
Or, 50 * D1 = 20 * D2
Or, D2 = 2.5 D1
Now, D1 + 2.5 D1 = 90
D1 = 25.7 cm
D2 = 64.3 cm
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