Comparing Quant...

If the cost price of $$14$$ articles is equal to the selling price of $$10$$ articles. What is profit per cent?

An article cost Rs $$80$$ to the vendor. If he marks the article for $$50$$% more than the cost price and sells it $$25$$% less than the marked price. What is his gain percentage ?

In terms of percentage profit, which among the following is the best transaction ?

Joshita borrowed Rs. $$3,000$$ for $$3$$ years and had to pay Rs.$$ 1,000$$ simple interest at the end of that time. What rate of interest did she pay?

Principal $$= 2500$$, rate $$= 6$$%, time$$= 4$$ years. Calculate the interest.

By selling on article for $$ Rs \  950$$, a man loses $$ 5 \%$$. If he had sold it for $$Rs. 1,220$$, the gain would be

A sum of money at simple interest amounts to Rs. $$600$$ in $$2$$ years and to Rs. $$800$$ in $$4$$ years. The sum is:

Principal + Amount - $$2 \times $$ principle = 

Find the profit per cent or loss per cent made when the S.P. of 15 identical articles is equal to the C.P. of 25 articles.

Convert $$\dfrac{16}{50}$$ into percentage.