Opal has 4 times as many pens as Abi. Abi has
34 as many pens as Dana. If the three of them have a total of 76 pens, how many pens does Dana have?
Opal |
Abi |
Dana |
4x3 |
1x3 |
|
|
3x1 |
4x1 |
12 u |
3 u |
4 u |
The number of pens that Abi has is repeated. Make the number of pens that Abi has the same. LCM of 1 and 3 is 3.
Total number of pens that the three of them have
= 12 u + 3 u + 4 u
= 19 u
19 u = 76
1 u = 76 ÷ 19 = 4
Number of pens that Dana has
= 4 u
= 4 x 4
= 16
Answer(s): 16