Answer:
we will add 7 kg of water in 35 kg of sugar syrup to change e its concentration from 30% to 25%?
Step-by-step explanation:
we are Given
the concentration of sugar in syrup is 30% of 35 kg, i.e. 10.5 kg.
Let's imagine
we add "X" quantity of water to reduce sugar concentration from 30% to 25%.
New quantity of sugar syrup will be (35 + X) kg, and sugar quantity is still 10.5 kg in the syrup.
we can see that new concentration is 25%.
now logically
sugar quantity = 25% of sugar syrup.
10.5 = 25% of (35 + X)
10.5 = 0.25 × (35 + X)
10.5 = 8.75 + 0.25X
10.5 - 8.75 = 0.25X
0.25X=1.75
x=[tex]\frac{1.75}{0.25}[/tex]=7
x=7 kg of water
Hence, proved that we will add 7 kg of water to to 35 kg of sugar syrup to change its concentration from 30% to 25%.
