In each of the following questions, a number series is given. Identify the wrong number in the series.

516, 260, 456, 312, 420, 348

In each of the following questions, a number series is given. Identify the wrong number in the series.

24 , 20 , 47 , 134.5 , 394 , 1101

What should come in place of question mark (?) in the following questions?

What should come in place of question mark (?) in the following questions?

Read the following information carefully and answer the question given below-

In the given questions, two quantities are given, one as ‘Quantity I’ and another as ‘Quantity II’. You have to determine relationship between two quantities and choose the appropriate option:

Quantity I: A shopkeeper marked the price of an article at 20% above the cost price and allow a discount of Rs 115. If he gains 10%, then the cost price of article is: 

Quantity II: A shopkeeper sold an article at a loss of 10% at Rs 1035. Find the cost price of article.

A bag contains 4 white and 2 black balls, another bag contains 6 white and 3 black balls. From any one of these bags a single draw of two balls is made. Find the probability that one of them will be white and other black ball.

My name is RAJAN. But my son accidentally types the word by interchanging a pair of letters in my name. What is the probability that despite this interchange, the name remains unchanged?

Raman took Rs 6800 as a loan which along with interest is to be repaid in two equal annual instalments. If rate of interest is  compounded annually, then the value of each instalment is:

Two trains running in opposite directions crossed each other in 't' sec. The ratio of their speed and length respectively are 5:3 and 4:5. If the slower train crossed a man standing across the track in 10 seconds, then find the value of t .

The ratio between present age of Ranjeet to Puneet is 3:5. After 12 years the ratio of age between Punit and Sunil becomes 7:6. If 12 years ago age of Sunil is 12 years, then the present age of Ranjeet is: