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Subject :IMO    Class : Class 7

Given below a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.
What is the principal sum?
I. The sum amounts to Rs 690 in 3 years at S.I.
II. The sum amounts to Rs 1150 in 5 years at S.I.
III. The rate of interest is 5% p.a.

AI and III only
BII and III only
CI and II only
DAny two of the three

I think it is not the D part as it does'nt make any sense

Ans 1:

Class : Class 6
I think part D does not make any sense

Ans 2:

Class : Class 9

Ans 3:

Class : Class 6

Ans 4:

Class : Class 7
i did not remember amswer

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