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Initial volume of water in Tank A = (40 x 30 x 20) cm3 = 24,000 cm3

 

Area of base of Tank A = (40 x 20) cm2 = 800 cm2

Area of base of Tank B = (20 x 20) cm2 = 400 cm2

 

After pouring, let h be the height of water in both tanks

Volume of water in Tank A = (800h) cm3

Volume of water in Tank B = (400h) cm3

 

Total volume of water = (800h + 400h) cm3 = 24,000 cm3

1200 h = 24,000

h = 20 cm

 

Volume of water in Tank A = (800 x 20) cm3 = 16,000 cm3 = 16L

 

 

 

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