Question

A, B and C shared a box of stickers. A received 1/5 of the stickers. B received 5/8 of the remainder. C had the rest. C had 22 more stickers than A. How many stickers did they have altogether?

Answer 1

Step-by-step explanation:

Multiplication and division are related arithmetic operations and arise out of everyday experiences. For example, if every member of a family of 7 people eats 5 biscuits, we can calculate 7 × 5 to work out how many biscuits are eaten altogether or we can count by ‘fives’, counting one group of five for each person. In many situations children will use their hands for multiples of five.



For whole numbers, multiplication is equivalent to repeated addition and is often introduced using repeated addition activities. It is important, though that children see multiplication as much more than repeated addition.

If we had 35 biscuits and wanted to share them equally amongst the family of 7, we would use sharing to distribute the biscuits equally into 7 groups.

We can write down statements showing these situations:

7 × 5 = 35 and 5 × 7 = 35

Also,

35 ÷ 5 = 7 and 35 ÷ 7 = 5

Answer 2

Answer:

220

Step-by-step explanation:

A = 1/5x

B = 5/8(x-1/5x)

B = x/2

A+B = 7x/10

C= x-7x/10

C= 3x/10

as C=A+22

3x/10= x/5 + 22

x=220