Question

A man sold $18$ cots for $Rs.16800,$ gaining thereby the cost price of $3$ cots. The cost price of a cot is

• A. $Rs.650$
• B. $Rs.700$
• C. $Rs.750$
• D. $Rs.800$

Answer 1

The correct option is D $Rs.800$

No of cots = 18

Gain = 3 cots.

% gain = $\frac{3}{18}\times 100=16.66$%

Let x be the C.P of 18 cots.

SP = x + 16.66% of x

1.166 x = 16800

x = 14400

C.P per cot $=\frac{14400}{18}=800Rs$