Posted by **jo** on Sunday, August 21, 2011 at 7:16am.

Mr Neo has fewer than 200 sweets. He wants to give his class an equal number of sweets. If he gives each pupil 3 sweets, he will have 70 left over. If he gives 5 sweets, he will need 10 more sweets.

How many pupils are there in the class?

How many sweets does Mr Neo have?

- Maths P5 -
**Henry**, Sunday, August 21, 2011 at 10:22pm
X = The total # of sweets.

Y = The total # of pupils.

Eq1: x - 3y = 70.

Eq2: x -5y = -10.

Subtract Eq1 from Eq2 and get:

2y = 80,

Y = 40 Pupils.

In Eq1, substitute 40 for Y:

x - 3*40 = 70,

x - 120 = 70,

X = 70 + 120 = 190 Sweets.

## Answer This Question

## Related Questions

- Math - A teacher has fewer than 200 sweets. She wants to give each pupil in her ...
- word problem - Rahim has 5 boxes of sweets.Each box contains y sweets.His ...
- Maths - John has some sweets to give to his friends. If he gives 4 sweets to his...
- MATH - The ratios of the number of sweets Abigail has to the number of sweets ...
- math - The owner of a candy store packs all of the sweets from a box into ...
- math - Alvin, Calvin and Melvin each have some positive integer number of sweets...
- algebra - Alvin, Calvin and Melvin each have some positive integer number of ...
- algebra - Alvin, Calvin and Melvin each have some positive integer number of ...
- maths - there are 12 sweets in a bag. 7 of the sweets are strawberry flavou. 5 ...
- maths - On children's day, a teacher brought 63 erasers and 147 sweets to ...

More Related Questions