Exams

What is the sum of the first 12 terms of an arithmetic progression if the first term is -19 and last term is 36?

The bar graph shows the production of table fans in a factory during one week. Study the bar graph and answer the question.

The maximum production exceeds the minimum production by:

E, F, G, H and K visit a hospital on week days. Each one of them is a physician, surgeon, dentist, cardiologist, nephrologist but in the random order. Each visits the hospital only one day in the week and attends to their profession only.

Consider the following information and answer questions based on it.

1. The physician visits office every Monday.
2. E is the cardiologist who comes neither on Tuesday nor Thursday.
3. K is a surgeon and G is not the physician.
4. The person who visits the office on Thursday is not a nephrologist.
5. H works on a Tuesday and K works on the following day.

Who is the nephrologist?

How many of the factors of 256 are perfect squares?

From the top of a platform 5 m high, the angle of elevation of a tower was 30 deg. If the platform was positioned 40√3 m away from the tower, how tall was the tower?

In a mixture 25 liters, the ratio of milk and water is 4:1. How many liters of milk must be added to make the ratio 16:1?

In a certain code language, f CHECK is coded as 97294 and QUERY is coded as 51238, then CHERRY will be coded as?

What is the value of |3(1) - 6|?