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1) Find the greatest possible length which can be used to measure 4 m 3 cm, 4 m 34 cm and 4 m 65 cm exactly.
No Explanation found. Add Explanation and get +2 points.
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2) A tree is 12 m tall and casts an an 8 m long shadow. At the same time, a flag pole caste a 100 m long shadow. How long is the flag pole ?
Explanation :
∵ 8 m shadow means original height = 12 m
∴ 1 m shadow means original height = 12/8 m
∴ 100 m shadow means original height = (12/8) x 100 m
= (6/4) x 100 = 6 x 25 = 150 m
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3) In a dairy farm, 40 cows eat 40 bags of husk in 40 days. In how many days one cow will eat one bag of husk?
Explanation :
40 cows eat 40 bags of husk in 40 days.
∴ 1 cows eat 40 bags of husk in 40 x 40 days.
∴ 1 cows eat 1 bags of husk in 40 x 40 / 40 days.
∴ 1 cows eat 1 bags of husk in 40 days.
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4) If a quarter Kg of potato costs 60 paise, How many paise will 200 gm cost?
Explanation :
As we know that Quarter Kg = 250 Gram
According to question,
250 Gram of potato costs 60 paise.
∴ 1 Gram of potato costs 60 / 250 paise.
∴ 200 Gram of potato costs 60 x 200 / 250 paise.
∴ 200 Gram of potato costs 60 x 20 / 25 paise.
∴ 200 Gram of potato costs 60 x 4 / 5 paise.
∴ 200 Gram of potato costs 12 x 4 paise.
∴ 200 Gram of potato costs 48 paise.
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5) If 8 men can reap 80 hectares in 24 days, then how many hectares can 36 men reap in 30 days?
Explanation :
Since 8 men in 24 days can reap 80 hectares.
∴ 1 men in 24 days can reap 80 / 8 hectares.
∴ 1 men in 1 days can reap 80 / 8 x 24 hectares.
∴ 36 men in 1 days can reap 80 x 36 / 8 x 24 hectares.
∴ 36 men in 30 days can reap 80 x 36 x 30 / 8 x 24 hectares.
∴ 36 men in 30 days can reap 10 x 36 x 30 / 24 hectares.
∴ 36 men in 30 days can reap 10 x 3 x 30 / 2 hectares.
∴ 36 men in 30 days can reap 10 x 3 x 15 hectares.
∴ 36 men in 30 days can reap 450 hectares.
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6) If the cost of x meters of wire is d rupees, then what is the cost of y meters of wire at the same rate?
No Explanation found. Add Explanation and get +2 points.
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7) If the price of 23 toys is Rs. 276, then what will the price (Rs.) of 12 toys?
No Explanation found. Add Explanation and get +2 points.
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9) The basic operations performed by a computer are
No Explanation found. Add Explanation and get +2 points.
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10) Microprocessors as switching devices are for which generation computers
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