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There are 150 weights. Some are 1 kg weights and some are 2 kg weights. The sum of the weights is 260. What is the number of 1kg weights?

Read Solution (Total 4)

There are a total of 150 weights. Let the number of 1 Kg weights be 'x'. Then the number of 2 Kg weights is '150 - x'. The sum of the weights is 260 Kg. ie [x * 1 + (150 - x) * 2] = 260. By solving this you will get 'x' as 40.
12 years agoHelpfull: Yes(11) No(2)

x+y=150
x+2y=260
y=110
x=40
5 years agoHelpfull: Yes(2) No(0)
x+2Y=150
x+y=260
sove and get x=40
6 years agoHelpfull: Yes(0) No(1)
Answer is 40
3 years agoHelpfull: Yes(0) No(0)

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