Re: INTEREST I BET YOU CANT SOLVE IT  
total amount invested 20000 
Re: INTEREST I BET YOU CANT SOLVE IT  
total amount invested is 20000 
Re: INTEREST I BET YOU CANT SOLVE IT  
TOTAL AMOUNT INVESTED 20,000=00, 12000=00(@10%) + 8000=00(@20%).

Re: INTEREST I BET YOU CANT SOLVE IT  
20000 rs 
Re: INTEREST I BET YOU CANT SOLVE IT  
total is ₹ 20000 
Re: INTEREST I BET YOU CANT SOLVE IT  
Just simple using the mixture formula... 12,000+8,000 =20,000 
Re: INTEREST I BET YOU CANT SOLVE IT  
Yeah 20 k is correct 