the simple interest on a sum of money will be rs 600..., Simple Interest, General Mathematics

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Question:The simple interest on a sum of money will be Rs. $600$  after  $10$  years. If the principal is trebled after  $5$  years, what will be the total interest at the end of the tenth year ?

A  $Rs. 600$  
B  $Rs. 900$  
C  $Rs. 1200$  
D Date inadequate

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+ AnswerC

+ ExplanationLet sum = x,S.I. Rs. $600$ , TIme =  $10$  years

Rate $= ((100 xx 6000)/(x xx 10))$ 

 $= (6000/x)%$ 

S.I. for first  $5$  years 

 $= Rs. ((x xx 5 xx 6000)/(x xx 100))$ 

 $= Rs. 300$ 

S.I. for first  $5$  years

 $= Rs. (3x xx 5 xx 6000/(x xx 100))$ 

 $= Rs. 900$ .

:. Total interest $= Rs. 1200$ .

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Question:The simple interest on a sum of money will be Rs.600600 after 1010 years. If the principal is trebled after 55 years, what will be the total interest at the end of the tenth year ?

A Rs.600Rs. 600

B Rs.900Rs. 900

C Rs.1200Rs. 1200

D Date inadequate

C

Question:The simple interest on a sum of money will be Rs. $600$ after $10$ years. If the principal is trebled after $5$ years, what will be the total interest at the end of the tenth year ?

A $Rs. 600$

B $Rs. 900$

C $Rs. 1200$