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?
2006-09-26 19:48:49 · 2 answers · asked by Anonymous in Education & Reference ➔ Special Education
I'm thinking if the sum of the weights is 260 kg, then there must be 40 "1 kg" weights.
110 weights x 2 kg = 220 kg
40 weights x 1 kg = 40 kg
110 weights + 40 weights = 150 weights
220 kg + 40 kg = 260 kg
2006-09-26 20:34:55 · answer #1 · answered by wireflight 4 · 0⤊ 1⤋
not possible to achieve.
sum of the weights is 260. assume all are 2kgs weights, you take 260/2=130 weights. but there are 150 weights. excess by 20 weights.
if 1 and 2kgs cannot be achieved, nothing can be achieved. makes no difference. you know what i mean?
2006-09-26 20:03:39 · answer #2 · answered by I am marrying her only. 2 · 0⤊ 1⤋