TCS Papers: Sample Questions 169 - 171 of 502

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Question number: 169

» Aptitude

Short Answer Question▾

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A spends 90 % of his salary and B spends 85 % of his salary. But savings of both are equal. Find the income of B, if sum of their incomes is Rs. 5000.

Explanation

As A is spending 90 % of his salary, his savings of his salary. ‎As B is spending 85 % of his salary, his savings of his salary. ‎Given that, both are saving equal amount. ‎Therefore, 10 % of A’s salary = 15 % of B’s salary‎Therefore,

So,

So,

We are asked to find the salary of B.

Sum of their income is Rs. 5000, i. e.

Hence, B’s income is Rs. 2000.

Question number: 170

» Aptitude

Short Answer Question▾

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One fast typist type some matter in 2hr and another slow typist type the same matter in 3hr. If both do combine in how much time they will finish?

Explanation

  • One fast typist can type matter in 2 hr and another slow typist can type same matter in 3 hr.
  • If both work together then they can complete the work in,

Question number: 171

» Aptitude

Short Answer Question▾

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In a fraction, if 1 is added to both the numerator and the denominator, the fraction becomes . If numerator is subtracted from the denominator, the fraction becomes 3/4. Find the fraction.

Explanation

  • Let the original fraction be x/y.
  • If 1 is added to both numerator and denominator, fraction becomes ½.
  • (x + 1) / (y + 1) = ½…… (i)
  • If numerator is subtracted from denominator the fraction becomes ¾.
  • x/ (y - x) = ¾……. . (ii)
  • Solving both the equations,
  • x = 3 and y = 7
  • So, original fraction will be 3/7.