# What is the marks in Science ?

A got twice as many marks in English as in Science. His total marks in English, Science and Mathematics is 180. If the ratio of his marks in English and Mathematics is 2:3, what are his marks in Science?

- 20
- 60
- 30
- 40

**Answer: (3) 30**

**Explanation:-**

According to the question,

Marks in science = 2 x marks in English . ……………… (1)

The ratio of his marks in English and mathematics = 2 : 3

Let be the marks in English = 2X & Marks in mathematics = 3X

Therefore, marks in science = X (From equation (1) )

The total marks in English, Science & Mathematics = 2X + X + 3X = 180

6X = 180

X = 180/6

X = 30

Hence, the answer is (3) 30.