Question

suppose you have 12000 to save you have to save some amount at 10 percentage and the rest at 15 percentage how much should be saved at each rate to yield 12 percentage on the total amount saved​

Answer 1

Answer:

amount at 10%=4800

amount at 15%=7200

i assumed you meant rates and that it is simple interest in 1 year

edit: i mistakenly put 1 star, i was testing if the person answering could vote but it submitted immediately

Step-by-step explanation:

sum=12,000

simple interest=principal×rate×time÷100

r₁=10, r₂=15

12÷100×12000=1440

1440=  10÷100×(12000-x) +   15÷100×x

1440= 0.1(12000-x)  +  0.15x

1440= 1200-0.1x +0.15x

1440= 1200-0.05x

1440-1200=0.05x

x= 240÷0.05= 4800

12000-4800=7200