Astudent gets 68 marks n therefore gets 85 percent total marks are?

There are 80 marks in total.

Step-by-step explanation:

Let the number of total marks be .

The percentage score of the student can be written as the ratio

.

However,

.

Equating the two:

.

Cross-multiply (that is: multiple both sides by , the product of the two denominators) to get

.

.

In other words, there are 80 marks in total.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500