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### Primary 5 Problem Sums/Word Problems - Try FREE

- Decimals: Did you know that a decimal is a fraction? > Decimals Exercise 14 > 4
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- Attempt Mode: Attempt Single Question

**Score :**

(Single Attempt)

**Question
**

A bank had 340 pieces of 4-gram and 10-gram gold coins in the morning.

During the day, it sold `1/2` of the 10-gram gold coins and `3/5` of the 4-gram gold coins to some customers.

By the end of the day, the bank was left with 3 times as many 10-gram gold coins as 4-gram gold coins.

(a) How many $10-gram gold coins did the bank sell?

(b) How many coins were sold in all?

(c) What is the mass of all the coins that were left unsold?

*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 :

**120,180,1360**