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Ravi

· started a discussion

· 1 Months ago

any short trick ??? (Question: 382375.0 )

short trick

Question:

A person invested some amount at the rate of 12% simple interest and a certain amount at the rate of 10% simple interest. He received yearly interest of Rs.130. But if he had interchanged the amounts invested, he would have received  Rs.4 more as interest. How much did he invest at 12% simple interest ?

Options:
A)

Rs.700

B)

Rs.500

C)

Rs.800

D)

Rs.400

Solution:

Ans: (b)

  

arpita

· commented

· 1 Months ago

First add both eq n then subtract calcualtion would b easier

Gopal jadon

· commented

· 1 Months ago

Nothing
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