Exams

If 4x - 5y = -37 and 7x + y = -16, then x - y = ______

The modern periodic table consists of 18 groups and 7 periods. What is the atomic number of the element placed in the 3rd group and the 4th period?

Assembly line was invented by

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

XX, XOX, XXXX, XXOXX, XXXXXX, ?

In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the button corresponding to it. If the sentence is free from error, click the "No error" option.

They are looking forward (A)/to meet (B) /their parents (C)/No Error (D)

Consider the given statement/s to be true and decide which of the given conclusions/assumptions can definitely be drawn from the given statement.

Statement 1: When water is cooled, it turns into ice.
Statement 2: When water is heated, it turns into steam.

Conclusion I: Water is a solid.
Conclusion II: Water is a gas.

If x = a cosθ+ b sinθ and y = b cosθ- a sinθ, then x2 + y2 is equal to

The total surface area of a hemisphere is 166.32 sq cm, find its radius?