Question

the cost of 25 bags cement each weighing 40 kg is rs 2750 what is the cost of 45 kg cement each weighing 36 kg ?

Answer 1

The cost of 25 bags of cement each weighing 40 kg is Rs 2750.
Total weight of cement =
$25 \times 40 \: = \: 1000 \: kg$
Therefore 1000 kg of cement costs Rs 2750.
Each kg of cement costs
$= 2750 \div 1000 \: = \: rs \: 275$
Do the rest yourself.
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Answer 2

1. Given the cost of 25 bags cement each weighing 40 kg is rs 2750.
2. hence from this we can write25bags*40kgs=2750----->1
3. cost of 45 cement bags each weighing 36 kg  is 45bags*36kgs=x----->2
4. on cross multiplying 1 and 2 we get x=4455