In 100 attempts different coloured regions were striked in given number of times.
: Find the probability that next attempt will srike Red region.

In 100 attempts different coloured regions were striked in given number of times. : Find the probability that next attempt will srike Green region.

A and B are persons standing in corner square as shown in the figure. They start to move on same time with equal speed, of A can move in East or South diretion and B can move in North or West diretion. If in each step they reach in next square and their choice of direction are equlity. If it is given that A and B meet in shaded region, then the probability that they have met in the top most shaded square, is

Given that the two numbers appearing on throwing two dice are different. Find the probability of the event the sum of numbers on the dice is 8.

Given that the two numbers appearing on throwing two dice are different. Find the probability of the event ‘the sum of numbers on the dice is 4’.

From the pair of linear equations in the following problems and find their solutions (if they exist) by elimination method : Seven times a given two digit number is equal to four times the number obtained by interchanging the digits and the difference of digits is 3. Find the number

Find the common difference of an A.P. whose first term is 100 and the sum of whose first six terms is five times the sum of the next six terms.