Amartya banerjee has forgotten the telephone number of his best friend Abhijit roy.All he remembers is that the number had 8 digits and ended with an odd number and had exactly one 9.How many possible no. does Amartya have to try to be sure that he gets the correct no.
Correct me what I am doing wrong: 1st case: when 9 is in units place : 9^6 x 8 2nd case: when 1/3/5/7 is at units place and 9 at any other: 9^5 x8x4 3rd case: when 9 is at left most place and 1/3/5/7 at units place: 9^6 x 4
sums up to 140 x 9^5. I know its wrong. I was able to solve it before. 😞
Let P(x) is a polynomial in x/ When P(x) is divided by (x-2) the remainder is 8. WHen P(x) is divided by (x+2) the remainder is 4. What is the remainder when P(x) is divided by x^2-4
To finish a given piece of work Amit takes as many days as Ravi and Pankaj together, Ravi takes 2 times as many days as Amit and Pankaj together and Pankaj takes 5 times as many days as Amit and Ravi together? What is the ratio of the time taken by Amit, Ravi and Pankaj to finish the same work individually
8 men and 12 women together can complete 50% of a work in 10 days. Whereas 12 men and 8 women can complete 40% of the work in 10 days. By what percentage the efficiency of a man is less than the efficiency of a woman?
A bag contains 6 white and 5 blue balls. If two balls are drawn at random from the bag, what is the probability that they are of different colours? 6/11,3/11,8/11 or 3/8...explain the method.
In ABCD angle A and angle B= 90 degree The sides of the quadrilateral are natural number. What is the area in sq units
1)Diagonal BD is 35 2) ABCD is a rectangle
Can be answered by one but not by other Can be answered by either statement alone If the statement can be anwered by using both statements alone but not by any one Cannot be answered even by using A and B
In a certain city people say "Yes" when they mean "NO" and vice versa. A stranger comes to the city to survey the people about the movie which was released last week He ask the following question to all the people who saw the movie. Did you like the movie ? Everyone answered yes or no
How many people liked the movie
1) 500 people gave yes as the answer ) 800 people gave no as the answer
Can be answered by one but not by otherCan be answered by either statement aloneIf the statement can be anwered by using both statements alone but not by any oneCannot be answered even by using A and B
A sum of money is sufficient to pay A's wages for 21 days or B's wages for 28 days. The number of days for which the money is suficient to pay the wages of both is:
One man or two women or 3 children can complete a piece of work in 48 days. How many days will it take for 2 men, 3 women and 3 children to complete the same piece of work?
There are two groups of children (A and B). A certain number of chocolates are distributed among the children in each group. Each child receives the same number of chocolates. If 200 less chocolates were distributed among the children in A and 400 more chocolates were distributed among the children in B, the number of chocolates received by the two groups would be the same. If there were 10 less children in A and 20 more children in B, both the groups would have the same number of children. Find the number of chocolates received by each child in A.
