There are 90 counters in a bag. each counter in the bag are either red or blue. the number of red counters : the number of blue counters = 2: 13lee is going to put some more red counters in the bag so that the probability of taking at random a red counter from the bag is 1/3. work out the number of red counters that lee is going to put in the bag?

One-third of the people from country a claim that they are from country b, and the rest admit they are from country a. one-fourth of the people from country claim that they are from country a, and the rest admit they are from country b. in a combined census of the two countries, one-half of the total claimed to be from a. what is the ratio of the populations of country a to that of country b.

Mickey needs to cut pieces of ribbon that are each 1 meter long tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long. how many 1 meter pieces of ribbon can he cut

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120