Find the sum of a 10-term geometric sequence when the first term is 3 and the last term is 59

The sum of 10 terms G.P is 310.                                                

Step-by-step explanation:

We are given the following in the question:

There are 10 terms in a geometric series.

First term, a = 3

Last term = 59

Sum of n terms of a geometric progression is given by:

Putting the values, we get,

Thus, the sum of 10 terms G.P is 310.

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.