Tamil Nadu Board Solutions for Chapter: Life Mathematics, Exercise 6: Exercise 4.2

The profit earned on selling an article for $₹810$ is the same as loss on selling it for $₹530$. If the cost price is$₹k$, find $k$. 

If $x=₹k$, find $k$. 

Find $y$

Find $z$.

If the total bill amount for the data given below$=₹k$, find $k$.

Find the total bill amount for the data given below:

A branded Air-Conditioner (AC) has a marked price of $₹38000$. There are $2$ options given for the customer.

(i) Selling Price is the same $₹38000$ but with attractive gifts worth$₹3000$ (or)

(ii) Discount of $8\%$ on the marked price but no free gifts.

Which offer is better?

If a mattress is marked for $₹7500$ and is available at two successive discounts of $10\%$ and $20\%,$ find the amount to be paid by the customer.