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Frequently Asked TCS Numerical Ability - Percentage Interview Questions with Answers

(#M40013255) TCS QUESTION Keep an EYE

how many kg of pure salt must be added to a 30kg of 2% solution of salt and water to increase it to a 10% solution?

Asked In TCS charan (6 years ago)

Unsolved Read Solution (2)

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(#M40011555) TCS QUESTION Keep an EYE

If 75% of a class of 40 students can sing and only 20% cannot dance, the maximum number of students who can neither sing nor dance is
a) 0 b) 6 c) 18 d) None of these

Asked In TCS Subrat Baral (6 years ago)

Unsolved Read Solution (9)

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(#M40165505) TCS QUESTION TCS Logical Keep an EYE

Three independent mechanisms A, B and C have been incorporated for power saving in a plant producing respectively 30%, 40% and 10% efficiency. Assuming that they operate independently, what is the net power efficiency achieved?
(a) 62.2% (b) 68% (c) 61% (d) 64% (e) 56%

Asked In TCS Mehul KOTHARI (8 Months ago)

Unsolved Read Solution (2)

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(#M40012019) TCS QUESTION Keep an EYE

a candidate who gets 20% of the maximum marks in an exam,fails by 30 marks,but another candidate who gets 32% of the maximum marks gets 42 marks more than the minimum pass marks find the % of pass marks?

Asked In TCS ratna (6 years ago)

Unsolved Read Solution (9)

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(#M40031196) TCS QUESTION math Keep an EYE

Q. If p is 6 times as large as q by what % q is less than p

Asked In TCS seema choudhary (5 years ago)

Unsolved Read Solution (6)

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(#M40040870) TCS QUESTION time and work Keep an EYE

A cistern can be filled by one of the pipes in 30 min and by the other in 36 min .both pipes are opended for a certain time but being partially clogged only 5/6 of the quantity of water flows though the former and only 9/10 through the later the obstruction however being suddenly removed the cistern is filled in 31/2 min form that moment .how long was it before the full of water began?

Asked In TCS neha nikhera (4 years ago)

Unsolved Read Solution (4)

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(#M40025661) TCS QUESTION Keep an EYE

If the price of petrol increases 30% and babu intends spend only an additional 10% on petrol,by how much percentage should he reduce the consumption

Asked In TCS xyz (5 years ago)

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(#M40000543) TCS QUESTION APTI Keep an EYE

the cost of manufacturing a popular model car is made up of three items:cost of raw material,labour and overheads- in a year the cost of three items were in the ration of 4:3:2.next year the cost of the raw material rose by 10% ,labour cost increased by 8% but overhead reduced by 5%.then %increase int the price of the car ?
a)7.67%
b)6%
c)0.54%
d)9.54%

Asked In TCS sundar ganesh (8 years ago)

Solved mukesh ranjan mallick Read Solution (5)

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(#M40165550) TCS QUESTION NUMBER SYSTEM Keep an EYE

IF X IS ADDED TO BOTH NUMENATOR AND DENOMINATOR IN FRACTION 2/3 AND 20/3,THEN FRACTION BECOME EQUAL.THE FACTOR OF X IS??

Asked In TCS Prikshit Gakhar (8 Months ago)

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(#M40034391) TCS QUESTION Weight of potato Keep an EYE

A bag with 100 kgs potatoes have 99% water. It is kept in the open under the sunlight. After sometime, little amount of water got evaporated and reduced to 98%. What is the weight now ?

Asked In TCS Ann Theressa (5 years ago)

Solved Saraswathy Read Solution (14)

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