Question

a milkman sold two of his buffaloes for rs 20000 each on one he made a gain of 5% and on the other a loss of 10% Find his overall gain or loss.​

Answer 1

Step-by-step explanation:

1st Buffalo = (1 +(5/100))×2000

=105/100*2000

= 2100

Profit = 100 rupees

2nd Buffalo = (1-(10/100)×2000

=90/100 * 2000

=1800

Loss = 200 rupees

Total Loss = 200 - 100

=》 ₹ 100

Answer 2

Answer:

let the length of chord be x cm

diameter of circle is 20cm so radius will be 10cm

distance of chord from centre of circle is 6cm

radius of circle act as hypotenuses of triangle ABC (let) and

\frac{x}{2}

2

x

is the base of triangle ABC which is half the length of chord

according to Pythagoras theorem

{10}^{2} = {6 }^{2} + \frac{x}{2}10

2

=6

2

+

2

x

let x/2 be b so

100=36+b2(b square)

64=b2(b square)

b=8

where b=x/2

2b=x

2×8=x

x=16

Step-by-step explanation:

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