3 years ago

Use chords to solve fox.

Mathematics

1 answer:

dimaraw [331]3 years ago

7 0

Answer:

x=70

Step-by-step explanation:

it is because equal chord cuts off equal arc.....

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<u>Answer-</u>

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Total money borrowed = Rs.12000

Out of those Rs.4000 is of 18% interest rate and remaining 12000-4000=8000 is of 15% interest rate.

$\text{Total interest}=\frac{P_1\times r_1\times t}{100}+\frac{P_2\times r_2\times t}{100}$

Where,

P₁ = principal amount = Rs.4000

P₂ = principal amount = Rs.8000

r₁ = rate of interest of P₁ = 18%

r₂ = rate of interest of P₂ = 15%

t = time period = 3 years

$\text{Total interest}=\frac{4000\times 18\times 3}{100}+\frac{8000\times 15\times 3}{100}=2160+3600=5760$

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