The weights of 4 boxes are 20,40,80 and 90 kilogrmas which of the following cannot be the total weight in kilograms of any combination of these box can be used only once

Options

A. 220
B. 230
C. 150
D. 210

Answer

A

Explanation

Possible total weights:
`(i) 20 + 40 + 80 + 90 = 230 kg`
(ii) `20 + 40 + 80 = 140 kg`
(iii) `20 + 40 + 90 = 150 kg`
(iv) `40 + 80 + 90 = 210 kg`
(v) `20 + 80 + 90 - 190 kg`
(vi) `20 + 40 = 60 kg`
(vii) `20 + 80 = 100 kg`
(viii) `20 +90 = 110 kg`
(ix) `40 + 80 = 120 kg`
(x) `40 + 90 = 130 kg`
(xi) `80 + 90 = 170 kg`