$X=$ Marked price of Laptop; $Y=$ Marked price of A.C. Decide the relation between $X$ and $Y$.
If $X \leq Y$ or can't be determined
From earlier results:
- Laptop:
\[MP_{\text{Lap}} = \text{₹}\,107142.\overline{85}\]
- A.C.:
\[SP_{\text{AC}} = \text{₹}\,50000, \quad \text{with 20\% discount } \Rightarrow MP_{\text{AC}} = \frac{50000}{0.8} = \text{₹}\,62500\]
Now comparing:
\[X = MP_{\text{Lap}} = \text{₹}\,107142.\overline{85}, \quad Y = MP_{\text{AC}} = \text{₹}\,62500\]
Clearly,
\[X > Y\]
The difference between the Compound Interest (compounded annually) and the Simple Interest on a certain sum at 10% per annum for 2 years is $15. Find the principal sum.
A trader marked up shirts by 40%, offered a 20% discount during a sale, and sold each for 234. Find the number of shirts he purchased.
$X=$ Average cost price of A.C and Mobile; $Y=$ Cost price of Laptop. Decide the relation between $X$ and $Y$.