Recent questions tagged ch-10

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

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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

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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

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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

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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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If the wages of 15 workers for 6 days are $Rs. 9450$, find the wages of 19 workers for 5 days .

asked Aug 10, 2015 by meena.p

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If the wages of 15 workers for 6 days are $Rs. 9450$, find the wages of 19 workers for 5 days .

asked Aug 10, 2015 by meena.p

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If a car covers $82.5 \;km $ in $5.5$ liters of petrol , how much distance will it cover in $13.2 $ liters of petrol ?

asked Aug 10, 2015 by meena.p

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If one score oranges cost $Rs. 45$ how many oranges can be bought for $Rs. 72$ ?

asked Aug 6, 2015 by meena.p

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If $166.50$ is the cost of 9 kg of sugar , how much sugar can be purchased for $259$

asked Aug 6, 2015 by meena.p

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The average of first 80 non zero positive number is

asked Aug 6, 2015 by meena.p

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If the mean of $a,b,c$ is $M$ and $ab+b+ca=0$ then the mean of $a_2,b_2,c_2$ is

asked Aug 6, 2015 by meena.p

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The average of seven number is $55$. If one number is excluded , the average becomes $52$ . The excluded number is

asked Aug 6, 2015 by meena.p

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The average of 7 number is $13.4$ The average of two of them is $11.6$ , While average of the other two is $14.5 $What is the average of the remaining three numbers ?

asked Aug 6, 2015 by meena.p

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Mother's age today is thrice as her son's after 10 years it would be just double How much old is the son today ?

asked Aug 6, 2015 by meena.p

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If 10 years , Anup will be twice as old as Bunny was 10 years ago. If Anup is now 9 years older than Bunny . the present age of Bunny is

asked Aug 6, 2015 by meena.p

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If 6 years are subtracted from the present age of Gaurav and the remainder is divided by $18$ , then the present age of his grandson Arjun is obtained if Arjun is 2 years younger to Mahesh whose age is 5 years , then what is the present age of Gaurav ?

asked Aug 6, 2015 by meena.p

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In a street the average age of 15 boys is 19 years . If the age of one more boys is included , the average decreased by $\large\frac{1}{2}$ What is the age of the new boy ?

asked Aug 6, 2015 by meena.p

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The ratio of vikram's age Anjali's is $3:5$ and the sum of their ages is $80 $ years . The ratio of their ages after 10 years will be

asked Aug 6, 2015 by meena.p

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If a fruit seller sells 'a' oranges for $Rs. x$ , then what is selling price of b oranges ?

asked Aug 6, 2015 by meena.p

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If 8 farmers can crop 80 hectares in 24 days , then now many hectares can 36 former's crop in 30 days

asked Aug 6, 2015 by meena.p

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If the price of 8 toys is $Rs. 432$ what will be the price of 6 toys?

asked Aug 6, 2015 by meena.p

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On a scale of map $0.4 \;cm$ represents $5.3 \;km$ . If the distance between the points on the map is $64\;cm$ the actual distance between these points is

asked Aug 6, 2015 by meena.p

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The cost of 16 packets of sugar , each weighing 900 grams is $Rs. 28$ What will be the cost of 27 packets , if each packet weight $1\;kg$?

asked Aug 6, 2015 by meena.p

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In a cloth company a $100\; m$ weaves $0.60$ meters of cloth every second . how many seconds will it take for the $100\;m$ to weave 30 meters of cloth ?

asked Aug 6, 2015 by meena.p

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If a certain number of labours can dig earth 100 m deep 25 m long and 30 m broad in 12 days , then find the number of days the same number of labours, will required to dig each 75 m deep , 20m long and 50 m broad

asked Aug 6, 2015 by meena.p

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If 36 men can do a piece of work in 25 days , in how days will 15 men do it ?

asked Aug 6, 2015 by meena.p

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If $14\;kg$ of pulses cost $Rs. 441$ What is the cost of 22 kg of pulses ?

asked Aug 5, 2015 by meena.p

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The car travels 14 km in 25 minutes if the speed remains the same , how much distance it will cover in 5 hours.

asked Aug 5, 2015 by meena.p

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The cost of 8 pencils is $Rs. 16$. Find the cost of 5 pencils.

asked Aug 5, 2015 by meena.p

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If a box of pens is given to 25 children they will get 2 pens each . how many would each get if the number children is reduced by 10?

asked Aug 5, 2015 by meena.p

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A contractor estimates that 5 persons could plumb Ravi's house in 8 days. If he used 6 persons instead of 5, how long should they take to complete the job .

asked Aug 5, 2015 by meena.p

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A bus travels 40 kms in 30 minutes . If the speed of the bus remains same , how far can it travel in 3 hrs?

asked Aug 5, 2015 by meena.p

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Bacteria enlarged $60000$ times attains a length of bacteria if it is enlarged 10000 times only

asked Aug 5, 2015 by meena.p

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A machine in a pepsi factory fills $680$ bottles in $5\;hrs$ . How many bottles will it fill in $3 \;hrs$

asked Aug 5, 2015 by meena.p

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Suppose $6\;kg$ of salt contains $6 \times 10^7$ crystals. How many crystals are there is in $7\;kg$ of salt.

asked Aug 5, 2015 by meena.p

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On walking x meters towards a chiming in a horizontal line through its base, the elevation of its top changes from $30^{\circ}$ to $60^{\circ}$ . The height of the chimney is _________

asked Nov 5, 2014 by meena.p

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If the angles of elevation of the top of a tower from two points at a distance of $4\;m$ and $9\;cm$ from the base of the tower and in the same straight line with it are complementary. The height of the tower is ______

asked Nov 5, 2014 by meena.p

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The angle of elevation of the sun , when the length of the shadow of a verticle pole is equal to its height is _____

asked Nov 5, 2014 by meena.p

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The height of a tower is $10 \;m$ . Find the length of its shadow when sum's attitude makes an angle of $45^{\circ}$ the horizontal

asked Nov 5, 2014 by meena.p

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The height of the mountain if the elevation of its top at an unknown distance from the base is $30^{\circ}$ and at a distance $10\;km$ further off from the mountain along the same line whose where angle of elevation is $15^{\circ}$ is _____ $(\tan 15^{\circ} = 0.27)$

asked Nov 5, 2014 by meena.p

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The shadow of a vertical tower on level ground increases by $10\;cm$ The attitude of sun changes from the angle of elevation $45 ^{\circ}$ to $30^{circ}$ The height of the tower is _______

asked Nov 5, 2014 by meena.p

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At a point on level ground, the angle of elevation of a vertical tower is found to be such that its tangent is $ \large\frac{5}{12}$ . On walking $192\;m$ towards the tower. the tangent of the angle of elevation is $\large\frac{3}{4}$. The height of the tower is

asked Nov 5, 2014 by meena.p

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The angle of elevation of a jet plane from a point A on the ground is $60^{\circ}$ After a flight of $30$ seconds , the angle of elevation changes to $30^{\circ}$. If the jet plane is flying at a constant height of $3600\sqrt 3\;m$, then the speeds of the jet plane is _______

asked Nov 5, 2014 by meena.p

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