1(a). N : O + P + R O : P + R P : R
1
: 4 2
: 5 9
: 11
= 7
: 28 =
8 : 20
Nevin
: Rick
7
: 11 ( Ans)
(b) 7 + 8 + 9 +
11 = 35
35 units ® 385
1 unit ® 11
Omar + Pat ® 8 + 9 = 17 units
17 units ® 17 × 11
= 187
Omar and Pat received
187 stamps together.
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