The cost price of 27 articles is the same as the selling price of 18 articles. What is the gain percentage?

If $$P_1$$, $$P_2$$, and $$P_3$$ are three distinct prime numbers, then what is the least common multiple of $$P_1$$, $$P_2$$, and $$P_3$$?

The following table shows the numbers of chairs made of plastic and of steel in 5 different colours that were sold from a furniture showroom during a sale.

The total number of chairs of colour C3 sold are what percentage of all the chairs of these 5 colours sold, both plastic and steel ones put together? [Give your answer correct to 2 decimal places.]

Shivani purchased five pens for ₹600. She sells these five pens at the rate of ₹50 per pen. What is the approximate lo percentage that Shivani incurred on selling the five pens?

Two craftsmen, A and B, are paid a total of ₹700 per week by their employer. If A is paid 250% of the sum paid to how much is A paid per week?

What is the average of the first 13 odd numbers?

A person goes from P to Q in 8 hours. He starts from P at 8 a.m. Another person goes from Q to P in 12 hours. He starts from Q at 9 a.m. At what time will they meet?

In a bag, the number of ₹5 coins is 8 more than the number of ₹10 coins but 20% less than the number of ₹2 coins. If total amount in the bag is ₹270, what is the number of ₹5 coins?