Transported 80813

Three Tatras transported 22.2 tons of sand. The second Tatra transported 20% more than the first, and the third Tatra 25% more than the second. How much did each Tatra take?

Correct answer:

a =  6 t
b =  7.2 t
c =  9 t

Step-by-step explanation:

r=100%+20%=1+10020=1.2 k=100%+25%=1+10025=1.25 m=22.2 t  a+b+c=m b=r a c=k b  a+r a+k r a=m a+1.2 a+1.25 1.2 a=22.2  3.7a=22.2  a=3.722.2=6  a=6=6 t
b=r a=1.2 6=7.2 t
c=k b=1.25 7.2=9 t



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