Recent questions in Class 7

If a rectangle has one of its side as 56 m, and the length of its diagonal is 106 m, then what is its area?

asked Oct 14, 2015 by pady_1

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A farmer wants to tie his buffalo with rope so that it can graze the grass in an area of 75 m^2, what should be the length of the rope?

asked Oct 14, 2015 by pady_1

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A contract has been given to a contractor to put a wall of 128 meter around a rectangular park. If the length of the park is 43 meter, what is the area of the park?

asked Oct 14, 2015 by pady_1

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If the length of a rectangle is decreased by 30\% and width is increased by 10\%, find the percentage by which its area changes.

asked Oct 14, 2015 by pady_1

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If diameter of a wheel of a cycle is 82.6 cm. If wheel makes 140 rotation in one minute, how long will it take for cycle to cover a distance of 3634.4 meters?

asked Oct 14, 2015 by pady_1

1 answer

A wire frame is in rectangular shape which is 25 cm long and 21.2 cm broad. If wire is reshaped in the circular shape, find the radius of the circle.

asked Oct 14, 2015 by pady_1

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If ABCD is a parallelogram, what is the ratio of area of triangle ΔDCA to area of parallelogram ABCD?

asked Oct 14, 2015 by pady_1

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The length, width and height of a hall are 10, 8 and 6 meters respectively. Find the area of its four walls.

asked Oct 14, 2015 by pady_1

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A rectangular park has the walking trail on the periphery of the park. If the length of the park is 39 meter and breadth is 24 meter, how much distance will a person cover if he takes 3 complete round(s) of the park ?

asked Oct 14, 2015 by pady_1

1 answer

If PQRS is a parallelogram, what is the ratio of area of parallelogram PQRS to area of triangle \bigtriangleup QSR?

asked Oct 14, 2015 by pady_1

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A farmer wants to tie his cow with rope so that it can graze the grass in an area of 243 m^2, what should be the length of the rope?

asked Oct 14, 2015 by pady_1

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A square park has an area of 7396 sq. m. It has to be fenced. The fencing will require use of a wire that must be able to enclose the park 4 times, and each circuit of the wire would be 3 % greater than the perimeter of the park. What is the length of wire (in metres) needed for this?

asked Oct 14, 2015 by pady_1

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A square ABCD has area 9 is bisected. L is the midpoint of AB, M the midpoint of BC, N the midpoint of CD and O the midpoint of DA. These points are used to construct a new square LMNO. The same process is repeated on LMNO to construct a smaller square QRST (where Q is the midpoint of LM and so on).What is the perimeter of QRST?

asked Oct 14, 2015 by pady_1

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Radha finds a rectangular piece of wire with sides of 139.8 and 48.6. She decides to bend it into a circular form so she can play with it. What will be the radius of the resulting circle?

asked Oct 14, 2015 by pady_1

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If diameter of a wheel of a cart is 42 cm. How many revolutions of wheel are required to travel a distance of 264 meters?

asked Oct 14, 2015 by pady_1

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If radius of a wheel of a cycle is 22.4 cm. If wheel makes 50 rotation in one minute, how far will cycle travel in 30 minutes?

asked Oct 14, 2015 by pady_1

1 answer

If the side of cube is halved, its volume will reduce by ______ times.

asked Oct 14, 2015 by pady_1

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If each side of a cube is tripled, find the factor by which surface area of the cube will change.

asked Oct 14, 2015 by pady_1

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A farmer wants to tie his cow with rope so that it can graze the grass in an area of 27 m^2, what should be the length of the rope?

asked Oct 14, 2015 by pady_1

1 answer

The perimeter of any rectilinear figure is the _____ of the sides.

asked Oct 14, 2015 by pady_1

1 answer

If diameter of a wheel of a cycle is 56 cm. How many revolutions of wheel are required to travel a distance of 334.4 meters?

asked Oct 14, 2015 by pady_1

1 answer

A rectangle and a square have the same area. If the side of the square is 360 metres, and the width of the rectangle is 45 metres, then what is the length of the rectangle?

asked Oct 14, 2015 by pady_1

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The integer -8 as rational number is _____.

asked Oct 14, 2015 by pady_1

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Simplify: \large\frac{10}{13}\times \large\frac{26}{15}+\large\frac{13}{25}\times \large\frac{10}{13}

asked Oct 14, 2015 by pady_1

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Seema spends $\large\frac{3}{4}$ of her pocket money. She spends $\large\frac{1}{2}$ of it on a book, $\large\frac{1}{6}$ on a movie and the remaining amount on a dress. What part of her pocket money did she spend on the dress?

asked Oct 14, 2015 by pady_1

1 answer

Identify the smallest rational number.

asked Oct 14, 2015 by pady_1

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Find x such that $\large\frac{(-3)}{7}$ and $\large\frac{x}{(-21)}$ are equivalent rational numbers.

asked Oct 14, 2015 by pady_1

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Subtract \large\frac{-1}{2} from \large\frac{4}{5}

asked Oct 14, 2015 by pady_1

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35 shirts of equal size can be stitched from $\large\frac{49}{2}$ metres of cloth, find the length of cloth required for 4 shirts of equal size ?

asked Oct 14, 2015 by pady_1

1 answer

A shopkeeper sells an article for 400 Rs, which he purchased it for 402 Rs. Find out loss per cent of shopkeeper.

asked Oct 14, 2015 by pady_1

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Find the product of \large\frac{-3}{5}\times \large\frac{35}{7}\times \large\frac{-1}{6}

asked Oct 14, 2015 by pady_1

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Identify the greatest rational number.

asked Oct 14, 2015 by pady_1

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subtract \large\frac{4}{5} from \large\frac{5}{4}

asked Oct 14, 2015 by pady_1

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Romila, Pooja and Swati went out for dinner in a hotel. Romila paid $\large\frac{1}{3}$ of the bill, Pooja paid $\large\frac{1}{5}$ of the bill. Swati paid the remaining part of the bill. What part of the bill was paid by Swati?

asked Oct 14, 2015 by pady_1

1 answer

Find the sum of 13\large\frac{3}{4} + (-11\large\frac{1}{2})

asked Oct 14, 2015 by pady_1

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The ratio of Rs 3 to 30 paise is __________.

asked Oct 14, 2015 by pady_1

1 answer

Reduce \large\frac{(-63)}{99} to the standard form

asked Oct 14, 2015 by pady_1

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Mayank reads \large\frac{1}{3} of a storybook on the first day and \large\frac{1}{4} of the book on the second day. What part of the story book is yet to be read by Mayank?

asked Oct 14, 2015 by pady_1

1 answer

Write the rational number whose denominator is the smallest 2 digit number and the numerator is the greatest 3 digit number.

asked Oct 14, 2015 by pady_1

1 answer

Product of two rational numbers is \large\frac{-8}{9}, one is \large\frac{-10}{3}, find other.

asked Oct 14, 2015 by pady_1

1 answer

Find the reciprocal of \large\frac{-1}{3}\times \large\frac{-15}{6}.

asked Oct 14, 2015 by pady_1

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From his home, Rahul walks \large\frac{6}{7} km towards school and then returns \large\frac{5}{6} km on the same way towards his home to reach a landmark. Where will he be now from his home?

asked Oct 14, 2015 by pady_1

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Write the rational number whose numerator is 4 × ( – 7) and denominator is (3 –7) × (15 – 11).

asked Oct 14, 2015 by pady_1

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Which of the rational number is positive?

asked Oct 14, 2015 by pady_1

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Sum of two rational numbers is –8, one number is \large\frac{3}{4}, find the other.

asked Oct 14, 2015 by pady_1

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What must be subtracted from \large\frac{-2}{3} to get \large\frac{3}{5}

asked Oct 14, 2015 by pady_1

1 answer

what must be added to \large\frac{-3}{8} to get \large\frac{5}{16}

asked Oct 14, 2015 by pady_1

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Which rational number is its own additive inverse?

asked Oct 14, 2015 by pady_1

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If \large\frac{-6}{13}\times x =1 find the value of x

asked Oct 14, 2015 by pady_1

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By what rational number should \large\frac{-7}{48} should be multiplied to get 49.

asked Oct 14, 2015 by pady_1

1 answer

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