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## TCS Aptitude Questions

(a) 5 (b) 20 (c) 15 (d) 10 (e) 30

2) If A, B and C are the mechanisms used separately to reduce the wastage of fuel by 30%, 20% and 10%. What will be the fuel economy if they were used combined.

3) A can do a piece of work in 20 days, which B can do in 12 days. In 9 days B does ¾ of the work. How many days will A take to finish the remaining work?

4) If 20 men take 15 days to complete a job, in how many days can 25 men finish that work?

5) 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.

6) The ratio of incomes of C and D is 3:4.the ratio of their expenditures is 4:5.Find the ratio of their savings if the savings of C is one fourths of his income?

This question is related to TCS Interviewneeti tripathiProfile Answers by neeti tripathi Questions by neeti tripathi

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## Editorial / Best Answer

koteeswarraoProfile Answers by koteeswarrao Questions by koteeswarrao

The formula is p(a union b)=p(a)+p(b)-p(a intersect b)

so, according to our problem p(a union b )=40 p(a)=30; p(b)=20;

so, we have to find p(a intersect b), so=30+20-40 =10

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