If the simple interest for 6 years be equal to 30% of the principal, it will be equal to the principal after 

Directions: Read the given pie and table carefully and answer the following questions.

The pie chart shows the percentage distribution of people who found COVID – 19 positive in four major cities of India from 1^st July to 31^st August 2020 and the table shows the number of people who tested positive in July from these cities.

What is the average of the number of people in August from Mumbai and the number of people in July from Chennai who tested positive?

Four years ago, the age ratio of A and B was 2: 3 and after four years this ratio will be 5: 7. What is his present age?

Three of the following four words are alike in a certain way and one is different. Pick the odd word out.

A Shopkeeper marks his goods 20 % above its cost price and gives 15 % discount on the marked price. Find the gain?

The average salary, per head, of all the workers of an institution is 60. The average salary of 12 officers is 400; the average salary, per head, of the rest is 56. The total number of workers in the institution is -

Three partner A, B and C started a business by investing Rs. 48000 each. after 6 months, A left the business after 10 months B left the business and after 12 months C left the business. If total earned profit is Rs. 5250, then find the share of A, B and C?

A shopkeeper wants to make a profit of 20% on an article after selling it, while he gives a cash discount of 20%. Further allows 4 more articles for free after purchase of one dozen articles to his premium customer. How much per cent above the cost price he must mark his article?