In how Much time a sum of RS 1600 amount to RS 1852.50 . So at 5% per annum compound interest.
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Step-by-step explanation:
1600 .5℅ is 320 (1600= a1 ) ; d=320 ; an=1852.50
a2 = a1 +d
= 1600 +320 = 1920
a2 = 1920
an = a + (n-1) × d
1852.50 = 1600 + (n-1) × 320
252.50 = (n-1) × 320
0.78 = n-1
n = 1.78
it will be in 1.78 years
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