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### Primary 6 Problem Sums/Word Problems - Try FREE

- Decimals: If you master decimals, we bow to you! > Decimals Exercise 7 > 2
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- Attempt Mode: Attempt Single Question

**Score :**

(Single Attempt)

**Question
**

The total mass of a box with 25 chemistry textbooks is 32 kg.

An identical box with 40 physics textbooks has a mass of 38 kg

The mass of a physics textbook is `3/4` that of a chemistry textbook.

(a) Find the total mass of 3 chemistry and 6 physics textbooks.

(b) What is the mass of the box?

* *

* Notes to student:*

*If the question above has parts(e.g. (a) and (b)), given that the answer for part (a) is 10 and the answer for part (b) is 12, give your answer as:10,12*

The correct answer is :

**9,2**