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Aptitude - Arithmetical Ability

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25.

The compound interest on a certain sum for 2 years at 10% per annum is Rs. 525. The simple interest on the same sum for double the time at half the rate percent per annum is:?

A.	Rs. 400	B.	Rs. 500
C.	Rs. 600	D.	Rs. 800

26.

What is the rate of compound interest? I. The principal was invested for 4 years. II. The earned interest was Rs. 1491.?

A.	I alone sufficient while II alone not sufficient to answer	B.	II alone sufficient while I alone not sufficient to answer
C.	Either I or II alone sufficient to answer	D.	Both I and II are not sufficient to answer

27.

The Simple interest on a certain sum for 2 years at 10% per annum is Rs. 90. The corresponding compound interest is?

A.	Rs. 99	B.	Rs. 94.50
C.	Rs. 95.60	D.	Rs. 108

28.

In an acoustics class, 120 students are male and 100 students are female. 25% of the male students and 20% of the female students are engineering students. 20% of the male engineering students and 25% of the female engineering students passed the final exam. What percentage of engineering students passed the exam??

A.	5%	B.	10%
C.	16%	D.	22%

29.

What will be compounded amount? I. Rs. 200 was borrowed for 192 months at 6% compounded annually. II. Rs. 200 was borrowed for 16 years at 6%.?

A.	I alone sufficient while II alone not sufficient to answer	B.	II alone sufficient while I alone not sufficient to answer
C.	Either I or II alone sufficient to answer	D.	Both I and II are not sufficient to answer

30.

An amount of money was lent for 3 years. What will be the difference between the simple and the compound interest earned on it at the same rate??

A.	I alone sufficient while II alone not sufficient to answer	B.	II alone sufficient while I alone not sufficient to answer
C.	Either I or II alone sufficient to answer	D.	Both I and II are necessary to answer

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