मराठी

The ______ of interest on a sum of ₹ 2000 at the rate of 6% per annum for 112 years and 2 years is ₹ 420.

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प्रश्न

The ______ of interest on a sum of ₹ 2000 at the rate of 6% per annum for `1 1/2` years and 2 years is ₹ 420.

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उत्तर

The sum of interest on a sum of ₹ 2000 at the rate of 6% per annum for `1 1/2` years and 2 years is ₹ 420.

Explanation:

Given, P = ₹ 2000 and R = 6%

For `1 1/2` years, 

`I = (P xx R xx T)/100`

= `(2000 xx 6 xx 3)/(100 xx 2)`

= ₹ 180

For 2 years, 

`I = (P xx R xx T)/100`

= `(2000 xx 6 xx 2)/100`

= ₹ 240

∴ The sum of both interests is ₹ (180 + 240), i.e. ₹ 420.

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पाठ 7: Comparing Quantities - Exercise [पृष्ठ २०२]

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एनसीईआरटी एक्झांप्लर Mathematics Exemplar Class 7
पाठ 7 Comparing Quantities
Exercise | Q 56. | पृष्ठ २०२

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