If a : b = 20:5 then find out the value of (13a-9b): (11a-7b)?
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Q:
If a : b = 20:5 then find out the value of (13a-9b): (11a-7b)?
- 1$$ {43\over 37}$$true
- 2$$ {43\over 42}$$false
- 3$$ {44\over 37}$$false
- 4$$ {40\over 33}$$false
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