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Agam
answered
1 year(s)
, 4 month(s) ago

Due to increase in the price of sugsr by 25%, by how much percent must a householder

If the price of a commodity increases by R%, then the reduction in consumption so as not to increase the expenditure is

Here R% = 25%

Hence % decrease in the consumption of sugar

- 2 Answers
- 4 Likes
- 43671 Views

Syeda
answered
1 year(s)
, 9 month(s) ago

A Sells a bicycle to B at a profit of 20% and B sells it to C at a profit of 25%

Let the cost price of the bicycle for A be Rs x

Given A sells the bicycle at a profit of 20%

This becomes the CP for B.

Hence CP of bicycle for B = (6x/5)

Given B sells...

- 15 Answers
- 7 Likes
- 41115 Views

Syeda
answered
1 year(s)
, 9 month(s) ago

A fruit-seller had some apples.He sells 40% of them and still has 420 apples

Answer.

60% of x= 420

60/100x = 420

60x = 42000

x = 42000/60

= 700

So he had 700 apples in total

- 4 Answers
- 4 Likes
- 39852 Views

Syeda
answered
1 year(s)
, 10 month(s) ago

ABCD is a quadrilateral then prove that AB + BC + CD + DA < 2(AC + BD)?

ABCD is a quadrilateral and AC, and BD are the diagonals.

Sum of the two sides of a triangle is greater than the third side.

So, considering the triangle ABC, BCD, CAD and BAD, we get

AB...

- 4 Answers
- 1 Like
- 38535 Views

Syeda
answered
1 year(s)
, 10 month(s) ago

Find the cost of carpeting a room .

Sol:

Length of the room = 13 m

Breadth of the room = 9 m

Area of the room = l × b = 13 × 9 = 117 m
^{2}

Let the length of the carpet required = 'l' m

Width of th...

- 3 Answers
- 6 Likes
- 31872 Views

Syeda
answered
1 year(s)
, 10 month(s) ago

Draw a rough sketch of two triangles such that they have five pairs of congruent parts but still the triangles are not congruent.

Answer.

A pair of triangles with three equal angles, and two equal sides are non-congruent.

Ex:

- SME Approved

- 3 Answers
- 5 Likes
- 28556 Views

Syeda
answered
1 year(s)
, 10 month(s) ago

How to construct 110 degree angle using ruler and compass only. please tell in simple words

No, 110Â° angle cannot be made with compass and ruler. It can be only made with a protracted as 110 is not a multiple of fifteen. Oly those angles can be constructed with compass and ruler which are multiple of...

- 11 Answers
- 5 Likes
- 25650 Views

Om
commented
1 year(s)
, 1 month(s) ago

The square lawn is surrounded by a path 2.5m wide. If the area of the path is 165 Sq., find the area of lawn.

Consider the side of the lawn be x

Given width of the path = 2.5m

Side of the lawn including path = x + 2(2.5m) = x + 5m

So, area of lawn = (Area of the lawn including the path) - (Ar

...Asked by Shivanshuawasthi

Mar 10

- 2 Answers
- 2 Likes
- 24929 Views

Raghunath
answered
4 year(s)
, 4 month(s) ago

Find 5 rational numbers between -1 and 0.

Sol:

Given numbers -1 and 0.

Rational numbers between 2 numbers a and b is ( a + b) / 2.

Rational numbers between 2 numbers -1 and 0 is

= ( -1 + 0) / 2 = -1/ 2

- 2 Answers
- 2 Likes
- 19356 Views

Syeda
answered
1 year(s)
, 10 month(s) ago

After 12years manoj will be 3 times as old as he was

Let the present age of Manoj be x years

After 12 years Manoj's age = (x + 12) years

4 year ago Manoj's age = (x − 4) years

Hence (x + 12) = 3(x − 4)

⇒ x + 12 = 3x − 12

⇒...

- 14 Answers
- 7 Likes
- 18937 Views

Syeda
answered
1 year(s)
, 9 month(s) ago

A certain freezing process requires that room temperature

The temperature is decreasing 5 degree Celsius per hour, so in 10 hours =10 X 5 = 50 degree celcious. Then, 40 - 50 = -10 degree celcious

- 6 Answers
- 2 Likes
- 18756 Views

Kishore
answered
5 year(s)
, 6 month(s) ago

If x + 1/x = 5 then X4 + 1/X4= ?

Squaring on both the sides, we get

Squaring on both the sides again, we get

- 1 Answer
- 3 Likes
- 18410 Views

Haritha
answered
4 year(s)
ago

Divide 184 in two parts such that one-third of one part may exceed one-seventh

Let one part be x

∴ The other part is (184 – x)

One-third of x = (x/3)

One-seventh of other part

Given that one-third of one part exceeds one-seventh of other part by 8....

Asked by Sauravkumar

Aug 6

- 3 Answers
- 4 Likes
- 17582 Views

Raghunath
answered
4 year(s)
, 2 month(s) ago

Find the value of n.

Sol:

Given 2
^{n-7} * 5
^{n-4 }= 1250

Here 1250 = 2 x 5 x 5 x 5 x 5 = 2 x 5
^{4}

Now 2
^{n-7} × 5
^{n-4 }× 2
^{3} =...

- 1 Answer
- 1 Like
- 16362 Views

Sagar
answered
4 year(s)
, 11 month(s) ago

ax+by=c and ay+bx=c+1 find the value of x and y

Given equations are ax+by = c --------------(1) and ay+bx = c+1 --------------(2)

multiply equation (1) by 'b' and equation (2) by 'a' we get

abx+b
^{2}y = bc

...

- 2 Answers
- 0 Like
- 15873 Views

Raghunath
answered
4 year(s)
, 1 month(s) ago

An article was sold for rs 250 with a profit of 5% .what is its cost price.

Selling price of an article = Rs 250

Profit = 5%

Cost price = (100 x SP) / ( 100 + gain)

Cost price = (100 x 250) / 105

Cost price...

Asked by Ishanbansal

Feb 25

- 1 Answer
- 4 Likes
- 15565 Views

Ramesh
answered
4 year(s)
, 3 month(s) ago

How many times a wheel must rotate to go 352 m?

Radius of the wheel = 28 cm

Distance covered by the wheel in one rotation = 2πr

= 2 × 22/7 × 28

= 176 cm

Distance to be covered = 352 m = 35200 cm

Number of rotat...

Asked by Amandeep Kaur

Jan 7

- 1 Answer
- 3 Likes
- 14922 Views

Natish
answered
4 year(s)
, 5 month(s) ago

A property dealer charges commission at the rate of 2% on Rs 200000

Given commission on Rs 2, 00,000 is 2%.

Commission on Rs 200001 to Rs 400000 is 1%

Commission above Rs 400001 is 0.5%

Value of the property sold is Rs 5,40,000

Commission = 2% of...

- 2 Answers
- 2 Likes
- 12954 Views

Kishore
answered
5 year(s)
, 8 month(s) ago

36% of the maximum marks are required to pass a test.A

Let the maximum marks be x

Given that the students got 123 marks

Also it is given that he is failed by 39 marks

Hence marks required to pass = 123 + 39 = 162

That is 36% of x = 1...

- 1 Answer
- 2 Likes
- 12790 Views

Syeda
answered
1 year(s)
, 9 month(s) ago

Mean of first 50 whole numbers

Answer.

The mean = sum/50

formula for finding sum of first n natural numbers=[n(n+1)]/2

So the sum of first 50 natural numbers=(50*51)/2

= 1275

So the mean=1275/50=25.5

- 4 Answers
- 0 Like
- 12569 Views

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