Question Detail

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 ?

xd
yd
yd/x
x/yd

Answer: Option C

1. If a quarter kg of potato costs 60 paise, how many paise will 200gm cost ?

45 paise
46 paise
47 paise
48 paise

Answer: Option D

Explanation:

Quarter of Kg means 250 gm

Less weight, less price (Direct Proportion)
So,

$\begin{aligned} 250:200 :: 60:x \\ => x = \frac{200*60}{250} \\ => x = 48 \end{aligned}$

So 200 gm will cost 48 paise.

2. A flagstaff 17.5 metre high casts a shadow of length 40.25 metre. The height of building, which casts a shadow of length 28.75 metre under similar conditions will be :

12 metre
12.5 metre
13.5 metre
14 metre

Answer: Option B

Explanation:

Less shadow, Less Height (Direct Proportion)
So, let height of building be x metre
then,

$\begin{aligned} 40.25 : 17.5 :: 28.75 : x \\ => x = \frac{17.5*28.75}{40.25} \\ => x = 12.5 \end{aligned}$

So height of building should be 12.5 metre

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 ?

34 days
40 days
46 days
50 days

Answer: Option B

Explanation:

Less Cows, More days (Indirect Proportion)
Less bags, Less days (Direct Proportion)

$\begin{aligned} \begin{bmatrix}Cows & 1 & 40 \\Bags & 40 & 1 \end{bmatrix} :: 40 : x \\ => x * 40 * 1= 40 * 1 * 40 \\ => x = 40 \end{aligned}$

4. In a camp, there is a meal for 120 men or 200 children. If 150 children have taken the meal, how many men will be catered to with the remaining meal ?

38 men
32 men
34 men
30 men

Answer: Option D

Explanation:

There is meal for 200 children. 150 children have taken the meal.
Remaining meal is to be catered to 50 children.
Now, 200 children = 120 men

So, 50 Children = 120/200 * 50 = 30 men

5. 10 men, working 6 hours a day can complete a work in 18 days. How many hours a day must 15 men work to complete the work in 12 days ?

4 hours a day
5 hours a day
6 hours a day
7 hours a day

Answer: Option C

Explanation:

More Men, Less Hours {Indirect Proportion}
Less Days, More Hours {Indirect Proportion}

$\begin{aligned} \begin{bmatrix}Men & 15 & 10 \\Days & 12 & 18 \end{bmatrix} :: 6 : x \\ => x * 15 * 12 = 10 * 18 * 6 \\ => x = \frac{10*18*6}{15*12} \\ => x = 6 \end{aligned}$

Question Detail

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. If a quarter kg of potato costs 60 paise, how many paise will 200gm cost ?

2. A flagstaff 17.5 metre high casts a shadow of length 40.25 metre. The height of building, which casts a shadow of length 28.75 metre under similar conditions will be :

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 ?

4. In a camp, there is a meal for 120 men or 200 children. If 150 children have taken the meal, how many men will be catered to with the remaining meal ?

5. 10 men, working 6 hours a day can complete a work in 18 days. How many hours a day must 15 men work to complete the work in 12 days ?

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Question Detail

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. If a quarter kg of potato costs 60 paise, how many paise will 200gm cost ?

2. A flagstaff 17.5 metre high casts a shadow of length 40.25 metre. The height of building, which casts a shadow of length 28.75 metre under similar conditions will be :

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 ?

4. In a camp, there is a meal for 120 men or 200 children. If 150 children have taken the meal, how many men will be catered to with the remaining meal ?

5. 10 men, working 6 hours a day can complete a work in 18 days. How many hours a day must 15 men work to complete the work in 12 days ?

Thanks ! Your comment will be approved shortly !

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