Nitin starts from Point A and drives 12 km towards south. He then takes a left turn, drives 15 km, turns left and drives 14 km. He then takes a left turn and drives 19 km. He takes a final left turn, drives 2 km and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (All turns are 90-degree turns only unless specified.)

If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 7421836, what will be the difference of the digits which are second from the left and second from the right in the new number thus formed?

In a certain code language, ‘JARS’ is coded as ‘4763’ and ‘ARMS’ is coded as ‘3657’. What is the code for ‘M’ in the given code language?

A question is followed by two statements numbered (I) and (II). You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and decide the appropriate answer.

Question:

Among 5 poles, W, O, K, G and Y each having a different height, which pole is the shortest?

Statements:

I. Y is taller than K.

II. G is taller than Y. W is only shorter than one pole.

Which of the following is the best example of a heterogeneous mixture?

A chemist wants to separate a mixture of sand and muddy water. She uses a filter paper and a funnel to accomplish this. Based on the properties of suspensions, which statement is correct why this method is effective?

A smart water tank system has two automated pipes. Pipe U1 fills the tank in 5 hours and pipe V1 can drain the tank in 10 hours. Pipe U1 is operated alone for 2 hours, after which V1 is also activated. How much of the tank will be filled after total 5 hours?

Two people of equal efficiency working together can complete a task in 6 hours. How long would it take one person alone to complete the same task?

The ratio of the areas of two similar triangles is 81 : 121. The ratio of their corresponding heights is: