Vikram and Vivek can finish a work in 50 days. They worked together for 20 days and then left. How much work has been done by them?

Statements followed by some conclusions are given below.

Statements:
1. A bag has 2 white, 3 black, 4 red and 6 green balls.
2. 2 balls are selected at random from the bag.

Conclusions:
1. The probability that a black ball is selected is 1/5.
2. The probability that a red ball is selected is 6/15.

Find which of the conclusions logically follows from the given statements.

Karan's number in the queue is twelfth from the counter. There are five people between Karan and Sunil. What is Sunil's number in the queue?

Biotechnology means

Expand : S + 23

World No-Tobacco Day falls on

Find the value of (?) in the series

3, 4, 6, 8, 12, ?, 18

Find the range of the data : 11,13, 9, 17, 13, 19, 10, 11