Vaidev put all his stamps into 21 large albums and 14 small albums. Each large album can hold 20 more stamps than each small album.
14 of his stamps were put into all the small albums and the rest were put into the large albums. How many stamps can be put into one small album?
|
Large albums (1) |
Small albums (2) |
Number |
21 |
14 |
Value |
1 u + 20 |
1 u |
Total value |
21 u + 420 |
14 u |
Comparing total stickers in large albums and small albums |
3 p |
1 p |
Total number of stamps in large albums
= 21 x (1 u + 20)
= 21 u + 420
21 u + 420 =
3 p --- (1)
14 u = 1 p --- (2)
(2)
x3
42 u =
3 p --- (3)
(3) = (1)
42 u = 21 u + 420
42 u - 21 u = 420
21 u = 420
1 u = 420 ÷ 21 = 20
Number of stamps in one small album
= 1 u
= 20
Answer(s): 20