Tech Mahindra Placement: Sample Questions 40 - 41 of 42

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Question 40

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Short Answer▾

The difference between the compound interest payable half yearly and the simple interest on certain sum at 10 % per anum for 1 year is ₹ 25. What is the sum?

Explanation

The compound interest is payable half yearly.

Let the sum be x.

Compound Interest = Amount - Principal

Simple Interest = Principal x Rate x Number of years

Difference between CI and SI is ₹ 25.

Question 41

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Short Answer▾

Find out the missing term in the following sequence.

0, 2, 2,4, 6,10, — , 26

Explanation

  • This is type of Fibonacci series.
  • First term of the series is 0.
  • Second term of the series is 2.
  • Third term of the series is again 2, which is addition of previous two terms, i.e..
  • Fourth term of the series is 4, which is addition of previous two terms, i.e..
  • Fifth term of the series is 6, which is addition of previous two terms, i.e..
  • Sixth term of the series is 10, which is addition of previous two terms, i.e..
  • Seventh term of the series needs to be find out.
  • It should also be the addition of previous two terms, i.e..
  • Eighth term also satisfies the same property, i.e..
  • So, missing term of the series is 16.

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