1.

(i) If a : b = 8 : 9, find the ratio of (7a - 4b): (3a + 2b).(ii) If a : b 5 : 3. show that(5a + 8b) : (6a - 7b) = 49 : 9.ICSE1​

Answer»

-STEP EXPLANATION:(7*8-4*9):(3*8+2*9)56-36/24+1820/42= 10:21(5*5+8*3): (6*5-7*3)25+24/30-21= 49/9



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