At a certain rate of interest, the interest after 3 years on Rs. 5000 principal is Rs.1200. What would be the interest on Rs. 12000 for the same time period?

3000

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2800

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2880

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2580

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Solution

The correct option is C
2880

Given :

P = Rs. 5000

T = 3 years

SI = Rs. 1200

$∴$ R = ( SI * 100 ) / ( P * T )

$\Rightarrow$ R = 8 %

Now,

New P = Rs. 12000

Time = 3 years

R = 8%

$∴$ SI =( 12000 * 3 * 8 )/100

= Rs. 2880

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At a certain rate of interest, the interest after 3 years on Rs. 5000 principal is Rs.1200. What would be the interest on Rs. 12000 for the same time period?

The correct option is C 2880 Given : P = Rs. 5000 T = 3 years SI = Rs. 1200 ∴ R = ( SI * 100 ) / ( P * T ) ⇒ R = 8 % Now, New P = Rs. 12000 Time = 3 years R = 8% ∴ SI =( 12000 * 3 * 8 )/100 = Rs. 2880

The correct option is C
2880

Given :

P = Rs. 5000

T = 3 years

SI = Rs. 1200

$∴$ R = ( SI * 100 ) / ( P * T )

$\Rightarrow$ R = 8 %

Now,

New P = Rs. 12000

Time = 3 years

R = 8%

$∴$ SI =( 12000 * 3 * 8 )/100

= Rs. 2880