Question

What will be the ratio of SI earned by an amount at the same rate of interest for 4
years & that for 12 years
a) 1:3 b) 3.1 ) 4:3 d) 3:4​

Answer 1

Answer:

a)1:3

SI for 4 year = P* R*4/100

SI for 12 year =P*R*12/100

Ratio of both=( p*r*4/100)/(p*r*12/100)

=4/12=1/3

Step-by-step explanation:

Answer 2

Answer:

OPTION a) IS CORRECT.

Step-by-step explanation:

Let the SI for 4 years be SI¹ and for 12 years be SI².

SI¹/SI²=(PRT¹/100)/(PRT²/100)

SI¹/SI²= T¹/T². (PR/100 in the numerator

cuts PR/100 in the denominator)

SI¹/SI²=4/12=1/3=1:3.

SO, OPTION a) IS CORRECT.

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