निम्नलिखित

Suppose train P crosses train Q in 55 sec when travelling in same direction then, Determine the length of train P.

A train crosses another train running in the opposite direction in 20 seconds. What is the speed of the train?

What is the time taken by train to go from Station A to Station B?

What is the smallest number of the six numbers?  

I.The average of six consecutive odd numbers is 8.  

A shopkeeper sells a homogeneous mixture of A and B at a rate of Rs 320 per kg. Find the profit percentage of the shopkeeper.

How much profit did the company earn in the year 2016?

You are given with a question followed by 2 statements. Identify that which statement(s) is/are necessary/ sufficient to answer the question?

What is the value of number x ?

I. The HCF of x and 16 is 8.

What minimum marks is required to pass an examination?