### Class IX

A fort had provision of food for 150 men for 45 days. After 10 days, 25 men left the fort. The number of days for which the remaining food will last, is:
1. 29 1 5
2. 37 1 4
3. 42
4. 54
An industrial loom weaves 0.128 metres of cloth every second. Approximately, how many seconds will it take for the loom to weave 25 metres of cloth?
1. 178
2. 195
3. 204
4. 488
Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?
1. 648
2. 1800
3. 2700
4. 10800
If the cost of x metres of wire is d rupees, then what is the cost of y metres of wire at the same rate?
1. Rs. xy d
2. Rs. (xd)
3. Rs. (yd)
4. Rs. yd x
A flagstaff 17.5 m high casts a shadow of length 40.25 m. The height of the building, which casts a shadow of length 28.75 m under similar conditions will be:
1. 10 m
2. 12.5 m
3. 17.5 m
4. 21.25 m
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