## Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.

## Question

Primary 4 | Maths

** 2 Answers Below **

Anyone can contribute an answer, even non-tutors.

**Answer This Question**

Pls help!!!!

90c for curry bun; 110c for sardine bun

Total is 1040c, not 1100c.

Pretend he buys 10 sardine buns. Then he pays 1100c.

For every 1 sardine buns swapped with 1 curry bun, he pays 20c less because he pays 90c instead of 110c.

1 curry, 9 sardine is 1080c

2 curry, 8 sardine is 1060c

3 curry, 7 sardine is 1040c

so he bought 3 curry buns and 7 sardine buns.

### See 2 Answers

*done*{{ upvoteCount }} Upvotes

*clear*{{ downvoteCount * -1 }} Downvotes