Sam has five times as many pens as Will. Will has 6 more pens than Pierre. They have a total of 50 pens.
- How many pens does Sam have?
- How many pens does Pierre have?
(a)
Number of pens that Will has = 1 u
Number of pens that Pierre has = 1 u - 6
Number of pens that Sam has = 5 u
Total number of pens
= 1 u + 1 u - 6 + 5 u
= 7 u - 6
7 u - 6 = 50
7 u = 50 + 6
7 u = 56
1 u = 56 ÷ 7 = 8
Number of pens that Sam has
= 5 u
= 5 x 8
= 40
(b)
Number of pens that Pierre has
= 1 u - 6
= 8 - 6
= 2
Answer(s): (a) 40; (b) 2
