Vaidev had
19 as many stamps as Ivan. Ivan had thrice as many stamps as Albert. If Vaidev had 66 stamps fewer than Albert,
- how many stamps did Vaidev have?
- how many stamps did they have altogether?
(a)
Number of stamps that Vaidev had = 1 u
Number of stamps that Ivan had = 9 u
Number of stamps that Albert had = 9 u ÷ 3 = 3 u
Number of stamps that Vaidev had fewer than Albert
= 3 u - 1 u
= 2 u
2 u = 66
1 u = 66 ÷ 2 = 33
Number of stamps that Vaidev had
= 1 u
= 33
(b)
Total number of stamps that they had
= 1 u + 9 u + 3 u
= 13 u
= 13 x 33
= 429
Answer(s): (a) 33; (b) 429
