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Maths Puzzle
which of the following is the rate percent per annum which would give difference in amount of interest equal to Rs 20 for Rs 1200 in 3 years and for Rs 800 in 4 years
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- let the rate is x
(x*1200*3)/100-(x*800*4)/100=20
36x-32x=20
x=5%(ans) - 12 years agoHelpfull: Yes(6) No(1)
- If x is rate of int p.a, then
36x-32x=20
x= 5% - 12 years agoHelpfull: Yes(1) No(5)
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