Vaidev and Tim have some white pens and some silver pens. The number of silver pens Vaidev has is equal to the number of white pens Tim has.
13 of Vaidev's pens are white and
34 of Tim's pens are silver. There are a total of 36 white pens. Find the total number of pens they have.
| Vaidev |
Tim |
Total |
| White |
Silver |
White |
Silver |
|
| |
1x2 |
1x2 |
|
|
| 1x1 |
2x1 |
1x2 |
3x2 |
|
| 1 u |
2 u |
2 u |
6 u |
11 u |
The number of Vaidev's silver pens and Tim's white pens is the same.
The number of Vaidev's silver pens is repeated. The number of Tim's white pens is repeated. Make the number of Vaidev's silver pens and Tim's white pens the same. LCM of 2 and 3 is 2.
Number of white pens
= 1 u + 2 u
= 3 u
3 u = 36
1 u = 36 ÷ 3 = 12
Total number of pens
= 1 u + 2 u + 2 u + 6 u
= 11 u
= 11 x 12
= 132
Answer(s): 132
