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प्रश्न
In what time will ₹ 17800 amount to ₹ 19936 at 6% per annum?
उत्तर
Let the require time be n years
Here Principal P = ₹ 17,800
Rate of interest r = 6% per annum
Amount A = ₹ 19,936
A = P + I
19936 = 17800 + I
19936 – 17800 = I
2136 = I
Simple Interest (I) = `"Pnr"/100`
2136 = `(17800 xx "n" xx 6)/100`
n = `(2136 xx 100)/(17800 xx 6)`
n = `2136/(178 xx 6)`
n = 2 years
Required time = 2 years
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