Question

5. How many grams of salt should be dissolved in 60 gm of water so that the solution becomes 30% ww​

Answer 1

Answer:

A = 10.588

so, A = 10.6gm

Explanation:

w/w = A/a + b × 100

so,

A/a + b × 100

now,

A/a + 60 × 100 = 15

∴A= 15/100 × (a + 60)

∴A= 3/20 × (a + 60)

∴A= 3/20a × 3/20 × 60

∴A= 3/20a + 9

∴A= 3a + 180/20

∴20A = 3a + 180

∴20A - 3a = 180

∴17A = 180

∴A = 180/17

∴A = 10.588

∴A = 10.6 ( approx. )

HOPE IT HELPS!!

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