Math, asked by minerva78, 7 months ago

quick answer please

Q. 1 What percent is 13 weeks of one year ?

Q. 2 Mr. Gupta purchases a house for ₹ 2,50,000 and spends ₹ 50,000 on repairs. If he sells it for ₹ 4,00,000, find his gain percent.

Q3 Find the simple interest on ₹ 2000 for six months at the rate of 8% per annum.

Q.4 Find the amount Meena gets on depositing ₹ 1500 at 8% per annum for 73 days.

Q5 What percent is 1/2 dozen of one score?

Q6 Write the definitions of : line segment , Collinear points, intersecting lines, parallel lines and concurrent lines.
with regards
minerva78

Answers

Answered by sumanthbhat99
1

Step-by-step explanation:

1. 1 year=52 weeks

13 weeks /1 year×100

=13/52 ×100

=1/4×100

=25%

2. amount he used on house=2,50,000+50,000

=3,00,000

sells at=4,00,000

gain %=(4,00,000-3,00,000)÷3,00,000×100

=1/3×100

=33.33%

3. P=2000

T=6months

R=8% per Annum

simple interest =PRT÷100

=2000×1/2×8÷100

=1000×8÷100

=8000÷100

=Rs.80

4. P=1500

T=73 days=1 term

R=8%÷5=1.6%for 73 days

A=P+I

I=PRT÷100

=1500×1× 1.6÷100

=15×1.6

=24

A=1500+24

=1524

5.1/2 dozen=6

1 score=20

6/20×100

=6×5

=30%

6. line segment is a part of a line with finite no. of points

collinear points are the points that fall on a straight line

intersecting lines are the lines that have a common point

parallel lines are the lines that do not have ant points in common.they are lines that never intersect

regards

sumanthbhat99

Answered by deekshitha565
1

Answer:

The percentage of 13 weeks of one year(leap year) = 14.2855 %

q2 Mr Gupta purchased a house for Rs.250000

So,

Cost Price (C.P) of the house be Rs 250000

Mr Gupta spends Rs 50000 for repairing the house

So, total C.P will be

Rs 250000 + Rs 50000 = Rs 300000

Now,

Mr Gupta sells the house at Rs 400000

So,

Selling Prices (S.P) of the house = Rs 400000

Now,

C.P < S.P

Than its profit

So,

Profit = S.P - C.P

Profit = Rs 400000 - Rs 300000

Profit = Rs 100000

To be found :-

The profit percent

Profit% = \frac{Profit}{C.P} \times 100C.PProfit×100

Profit% = \frac{100000}{300000} \times 100300000100000×100

Profit% = 33.33%

Hence

Mr Gupta gained 33.33% profit

q3

Principal (P) = Rs 2000

Rate of Interest (R) = 4 whole \frac{1}{2}21 % per annum = 4.5 % p.a

Time (T) = 6 months = \frac{6}{12}126 years = \frac{1}{2}21 years = 0.5 years

To be found :-

The Simple Interest (S.I)

S.I = \frac{P \times R \times T }{100}100P×R×T

S.I = \frac{2000 \times 4.5 \times 0.5}{100}1002000×4.5×0.5

S.I = Rs 45

Hence

The Simple Interest (S.I) = Rs 45

q4 incipal (P) = Rs 1600

Rate of Interest (R) = 15% per annum

Time (T) = 73 days = \frac{73}{365}36573 years = 0.2 years

[ as there are 365 days in a normal year, and to convert days into year we have to divide the given days by 365 day (you can also divide by 366 is in the question leap years would be given) ]

To be found :-

The Simple Interest (S.I)

and Amount (A)

q5 1/2 dozen of one score is 30%.

Step-by-step explanation:

We have to find the percent of 1/2 dozen in one score.

As we know that 1 dozen = 12 units.

\frac{1}{2}\text{ Dozen}=\frac{1}{2}\times 12=6units21 Dozen=21×12=6units

1 score = 20 units.

By using this conversion, we get

\frac{6}{20}\times 100=30206×100=30

Therefore the 1/2 dozen of one score is 30%.

q6 (i) Line-segment- Give two points A and B on a line l, the connected part (segment) of the line with end points at A and B is called the line segment AB. ... The common point is called point of intersection. (v) Concurrent lines – Three or more lines are said to be concurrent if there is a point which lies on all of them.

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