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(#M40000717) TCS QUESTION Keep an EYE

A bus started from bus stand at 8.00a m and after 30 min staying at destination, it returned back to the bus stand. The destination is 27 miles from the bus stand. The speed of the bus 50 percent fast speed. At what time it returns to the bus stand.

(a) 11a.m (b) 12a.m (c) 10a.m (d) 10.30p.m

Solution

The question is not complete, it should also be given in the question that average speed of the bus is equal to the starting speed of the bus
if we make this correction then answer by RAJAT SHARMA given below is correct

the answer is 11 a.m. ..........
let the initial speed of bus is V.....so it takes time in going T1 = 27/V and speed increases 50 %, while returning so time taken T2 = 27/(1.5V) = 18/V and it stops for 30 mins i.e., (.5 hr),
therefore total time taken T =(27/V)+(18/V)+(.5).
then average speed, V = total dist. traveled / total time
i.e.,V=2*27/T on solving we get V = 18 mph
hence finally time taken while going = 1.5hr + staying time (.5hr.) + time in returning with increased speed of 27 mph (1hr.)
hence total time taken=3 hrs. hence 11a.m.

but if we use the initial speed (18 mph) as a given term, then answer given below by YADEESHKUMAR is correct
ans is a)11am
bus covers 27 miles with 18mph in= 27/18 = 1 hr. 30 min.
it waits at stand = 30min.
after this, speed of return increases by 50 % so 50 % of 18 mph = 9 mph
total speed of returning = 18+9 = 27 mph
then in return it takes 27/27 = 1hr.
thus total time in journey = 1+1.30+0.30 = 3hr
so it will come at 8+3hr=11am.

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Asked In TCS Rajeev Singh (14 years ago)

Solved Read Solution (1)

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(#M40000716) TCS QUESTION Keep an EYE

A man, a woman, and a child can do a piece of work in 6 days. Man only can do it in 24 days. Woman can do it in 16 days and in how many days child can do the same work?
(a) 8 (b) 14 (c) 16 (d) 18

Asked In TCS Rajeev Singh (14 years ago)

Solved suneil Read Solution (4)

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(#M40000715) TCS QUESTION Keep an EYE

A box of 150 packets consists of 1kg packets and 2kg packets. Total weight of box is 264kg. How many 2kg packets are there?

(a) 100 (b) 114 (c) 200 (d) 208

Asked In TCS Rajeev Singh (14 years ago)

Solved suneil Read Solution (4)

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(#M40000714) TCS QUESTION Keep an EYE

A pizza shop, there were 2 kinds of pizzas available. But now they have introduces 8 new types, a person buy two different type pizzas of new type in how many ways he can select?

(a) 24 (b) 43 (c) 56 (d) 58

Asked In TCS Rajeev Singh (14 years ago)

Unsolved Read Solution (6)

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(#M40000713) TCS QUESTION Keep an EYE

A man jogs at 6 mph over a certain journey and walks over the same route at 4 mph. What is his average speed for the journey?
a) 2.4 mph (b) 4 mph (c) 4.8 mph (d) 5 mph

Asked In TCS Rajeev Singh (14 years ago)

Solved Karthik Pandiyan Read Solution (6)

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(#M40000712) TCS QUESTION Keep an EYE

There are two water tanks A and B, A is much smaller than B. While water fills at the rate of one litre every hour in A, it gets filled up like 10, 20, 40, 80, 160... in tank B.( At the end of first hour, B has 10 litres , second hour it has 20, and so on). If tank B is 1/32 filled after 21 hours, what is the total duration required to fill it completely?

a) 26 hrs (b) 25 hrs (c) 5 hrs (d) 27 hrs

Asked In TCS Rajeev Singh (14 years ago)

Solved Sivabharathi Read Solution (9)

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(#M40000711) TCS QUESTION Keep an EYE

Middle – earth is a fictional land inhabited by Hobbits, Elves, dwarves and men. The Hobbits and the Elves are peaceful creatures who prefer slow, silent lives and appreciate nature and art. The dwarves and the men engage in physical games. The game is as follows . A tournol is one where out of the two teams that play a match, the one that loses get eliminated. The matches are played in different rounds where in every round , half of the teams get eliminated from the tournament. If there are 8 rounds played in a knock-out tournol how many matches were played?

a) 257 (b) 256 (c) 72 (d) 255

Asked In TCS Rajeev Singh (14 years ago)

Solved YadeeshKumar Read Solution (6)

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(#M40000710) TCS QUESTION Keep an EYE

There are 10 reading spots in a room. Each reading spot has a round table. Each round table has 4 chair. If different no of persons are sitting at each reading spot. And if there are 10 persons inside the room then how many reading spots donot have atleast a single reader.

(1) 5 (2) 6 (3) 7 (4) None

Asked In TCS Rajeev Singh (14 years ago)

Solved suneil Read Solution (5)

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(#M40000709) TCS QUESTION Keep an EYE

23 people are there, they are shaking hands together, how many hand shakes possible, if they are in pair of cyclic sequence.
(a) 22
(b) 23
(c) 44
(d) 46

Asked In TCS Rajeev Singh (14 years ago)

Solved ramya Read Solution (8)

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(#M40000708) TCS QUESTION Keep an EYE

It is dark in my bedroom and I want to get two socks of the same color from my drawer, which contains 24 red and 24 blue socks. How many socks do I have to take from the drawer to get at least two socks of the same color?

(a) 2 (b) 3 (c) 48 (d) 25

Asked In TCS Rajeev Singh (14 years ago)

Solved YadeeshKumar Read Solution (5)

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