Question

Choose the correct answer from the alternatives given.
In what proportion must water be mixed with spirit to gain $16\frac{2}{3}$% by selling it at cost price?

• A. $1:7$
• B. $1:6$
• C. $1:5$
• D. $Noneofthese$

Answer 1

The correct option is B $1:6$

R.E.F image

Water : Spirit $=1:6$

Alternate Method:

The gain per cent by selling the mixture is equal to the ratio of

water to spirit in the mixture $16\frac{2}{3}\%=\frac{1}{6}.$ Hence, the required

ratio is $1:6$