Recent questions tagged class8

A scooter consumes 28 liter of petrol in covering a distance of 2100 km . How much petrol will be needed to cover a distance of $3600\;km$

asked Aug 11, 2015 by meena.p

1 answer

12 bags of wheat weight 90 kg . how much will 20 bags weight ?

asked Aug 11, 2015 by meena.p

1 answer

Two persons could fit new window in a house in 8 days . One of the persons fell ill before the work started . How long would the job take now ?

asked Aug 11, 2015 by meena.p

1 answer

A machine in a soft drink factory fills $840$ bottles in six hours. How many bottles will it fill in five hours ?

asked Aug 11, 2015 by meena.p

1 answer

6 pipes are required to fill a tank in 1 hour 20 mins. How long will it take if only 5 pipes of the same type are used?

asked Aug 11, 2015 by meena.p

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A batch of bottles were packed in 25 boxes with 12 bottles in each box. If the same batch is packed using 20 bottles in each box . How many boxes would be filled .

asked Aug 11, 2015 by meena.p

1 answer

If 15 workers can build a wall in 48 hours how many workers will be required to do the same work in 30 hours.

asked Aug 11, 2015 by meena.p

2 answers

A loaded truck travels $14\;km$ in 25 min. If the speed remains the same . how far can it travel in 5 hours?

asked Aug 11, 2015 by meena.p

1 answer

A factory requires 42 machines to produce a given number of articles in 63 days . How many machines would be required to produce the same number of articles in 54 days

asked Aug 11, 2015 by meena.p

1 answer

A school has 8 periods a day each of 45 minutes duration , How long would each period be if the school has 10 periods a day , assuming the number of school hours to be the same ?

asked Aug 11, 2015 by meena.p

1 answer

In a model of a ship, the mast is 9 cm high , While the mast of the actual ship is $12\;cm$ high. If the length of the ship is $28\;cm$ how long is the model ship.

asked Aug 11, 2015 by meena.p

1 answer

A mixture of paint is prepared by mixing 1 part of red pigment with 8 parts of base. How many part of base will be used in mixture by mixing 20 parts of red pigments

asked Aug 11, 2015 by meena.p

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The cost of 5 meters of a particular quality of cloth is $Rs. 210$ . Find the cost of 13 meters of cloth of the same type

asked Aug 11, 2015 by meena.p

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Two quantities x and y are said to be in ______ if an increase in causes a propertional decrease in y in such a manner that the product of their corresponding values remain constant

asked Aug 11, 2015 by meena.p

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Two quantities x and y are said to be in ______ if they increase (decrease) together in such a manner that the ratio of their corresponding values remains constant

asked Aug 11, 2015 by meena.p

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If there are 6 builders, it takes 80 days to complete the house. How many builders must be employed to built the house in just 16 days .

asked Aug 11, 2015 by meena.p

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Y is directly proportional to x and $y=24$ when $x=4$ What is the value of y when $x=3$

asked Aug 11, 2015 by meena.p

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It takes 5 workers 10 days to file the wall of an industrial premises . How many workers would it take to file the the same wall in 2 days ?

asked Aug 11, 2015 by meena.p

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A farmer has enough cattle to feed $300 $ hens for $20\;days$ If he buys 100 more hens how long would the same amount of feed feed the total hens ?

asked Aug 11, 2015 by meena.p

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It takes 4 men 6 hours to repair a road. How long will it take 7 mens to do the job if they work at the same rate ?

asked Aug 11, 2015 by meena.p

1 answer

A car travels 125 miles in 3 hrs . How far will it travel in 5 hours ?

asked Aug 11, 2015 by meena.p

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If $\large\frac{4}{7}$ of tank be filled in $2 \;min$ . How many minutes will it take to fill the whole tank ?

asked Aug 11, 2015 by meena.p

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If two pencil cost $Rs. 1.50$ how many pencils can you with $Rs. 9.00$?

asked Aug 11, 2015 by meena.p

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5 pipes are required to fill a petrol tank in 2 hr 20 min. How long will it take if only 4 pipes of the some type are used ?

asked Aug 11, 2015 by meena.p

1 answer

Nandika has a road map with a scale 1 cm representing 25 km. She driven on a road for $100 \;km$ What would be her distance covered in the map ?

asked Aug 11, 2015 by meena.p

1 answer

If the weight of 25 precious stones is $50\;g$. How many precious stones of the same type would weigh 4500 kg

asked Aug 11, 2015 by meena.p

1 answer

There are 200 students in a primary school. They need 50 liters of drinking water/day . If 50 of them are reduced how many liters of water needed per day ?

asked Aug 11, 2015 by meena.p

1 answer

Two person could fit the Ac unit in a house in 2 days one person fell ill before the work started , how long would the job take now ?

asked Aug 10, 2015 by meena.p

1 answer

In a toy company , it required 36 machines to produce a car toys in 54 days . How many machines would be required to produce the same number of car toys in 81 days .

asked Aug 10, 2015 by meena.p

2 answers

A farmer has enough food to feed 20 animals in his cattle for 6 days . How long would the food last if there were 10 more animals in his cattle ?

asked Aug 10, 2015 by meena.p

1 answer

If a box of sweets is durded among 24 children , they will get, if the numbers of the children is reduced by 4.

asked Aug 10, 2015 by meena.p

1 answer

If two quantities x and y are in inverse proportion then __________

asked Aug 10, 2015 by meena.p

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x and are said to vary directly with each other 1 f for some positive number k , then __________

asked Aug 10, 2015 by meena.p

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2 kg of sugar contains $9 \times 10^6 $ crystals How many sugar crystals are there in 6 kg of sugar.

asked Aug 10, 2015 by meena.p

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Gita brought 40 toys each cost Rs. 14 How many toys Imran can buy at Rs. 8 each from the same amount.

asked Aug 10, 2015 by meena.p

1 answer

Rajiv takes $75$ steps / min , if the length of each step is 60 cm . find his speed in km/ hr

asked Aug 10, 2015 by meena.p

1 answer

Seema weaves 25 baskets in 35 days . In how many days will she weave 110 baskets ?

asked Aug 10, 2015 by meena.p

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A car travels $81\;km$ in $4.5 $ liters How far will it go by 20 litres of petrol ?

asked Aug 10, 2015 by meena.p

1 answer

Four pipes can fill the tank in 70 minutes How long will it take to fill the tank by 7 pipes?

asked Aug 10, 2015 by meena.p

1 answer

If $104 men$ can do a piece of work in 70 days in hoe many days 28 men will do it ?

asked Aug 10, 2015 by meena.p

1 answer

If two quantities P and q vary inversly with each other , then

asked Aug 10, 2015 by meena.p

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100 persons had food provision for $24 \;days$ . If 20 persons left the place the provision will last for

asked Aug 10, 2015 by meena.p

1 answer

Meenashee cycles to her school at an average speed of $12\;km/hr$ and takes $20 $ minutes to reach her school. If she wants to reach her school in $12$ minutes , her average speed should be

asked Aug 10, 2015 by meena.p

1 answer

Both x and y are in direct proportion then $ \large\frac{1}{x}$ and $\frac{1}{y}$ are in

asked Aug 10, 2015 by meena.p

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Which of the following vary inversely with each other ?

asked Aug 10, 2015 by meena.p

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A truck needs 54 liters of diesel for converting a distance of $297\;km$ . The diesel required by the truck to cover a distance of $550\;km$ is

asked Aug 10, 2015 by meena.p

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Assuming land to be uniformly fertile the area of land and the yield on it vary .

asked Aug 10, 2015 by meena.p

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Both u and v vary directly with each other. When u is 10 V is 15, which of the following is not a possible pair of corresponding value of u and v?

asked Aug 10, 2015 by meena.p

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6 oxen or 8 cows can graze a field in 28 days. How long 9 oxen and 2 cows take to graze the same field?

asked Aug 10, 2015 by meena.p

1 answer

If 35 men can reap a field in 8 days in how many days can 20 men reap the same field ?

asked Aug 10, 2015 by meena.p

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