If there are 50 mangoes in a box,how will you write the total number of mangoes in terms of the number of boxes ?(Use b for the number of bxes.)

The total number of 4-digit numbers is

5 students stand in a row.Write the rule for the number of students for a given number of rows.(Use n for the number of rows.)

Complete the table and use decimals to write the number. .

Complete the table and use decimals to write the number. .

Complete the table and use decimals to write the number. .

A shopkeeper sells mangoes in two types of boxes, one small and one large. A large box contains as many as 8 small boxes plus 4 loose mangoes. Set up an equation which gives the number of mangoes in each small box. The number of mangoes in a large box is given to be 100.

There are 6 red and 8 green balls in a bag. 5 balls are drawn at random and placed in a red box. The remaining balls are placed in a green box. What is the probability that the number of red balls in the green box plus the number of green balls in the red box is not a prime number?