# United Kingdom Hydrographic Office Interview Questions Answers, HR Interview Questions, United Kingdom Hydrographic Office Aptitude Test Questions, United Kingdom Hydrographic Office Campus Placements Exam Questions

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This page contains the most recently asked technical questions and answers in the United Kingdom Hydrographic Office.

All of the questions listed below were collected by students recently placed at United Kingdom Hydrographic Office.

Ques:- A man sees a train passing over a bridge 1 km long. The length of the train is half that of the bridge. If the train clears the bridge in 2 minutes, the speed of the train is
A. 30 km/hr
B. 40 km/hr
C. 45 km/hr
D. 55 km/hr
Recent Answer : Added by Fatima On 2022-09-24 14:33:33:

45 km/hr

Ques:- The H.C.F. and L.C.M. of two numbers are 12 and 336 respectively. If one of the numbers is 84, the other is
A. 24
B. 36
C. 48
D. 72
Recent Answer : Added by anonymous On 2022-03-09 16:38:02:

12*336/84=48

Ques:- 6897 is divisible by
A. 11 only
B. 19 only
C. both 11 and 19
D. neither 11 nor 19
Recent Answer : Added by Raimi Rafiu On 2022-09-15 16:36:47:

11

Ques:- Find out the wrong number in a given series.
644, 328, 164, 84, 44, 24, 14
A. 44
B. 84
C. 164
D. 328
Recent Answer : Added by Demelash On 2022-05-17 08:55:46:

D

Ques:- The LCM of two numbers is 75. The GCF is 5. The sum of the numbers is 40. What are the numbers?
Recent Answer : Added by Akshay On 2022-03-09 16:46:01:

15,25

Ques:- a+b+c=13 c+d+e=13 e+f+g=13 g+h+i=13 find the value of e.
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Ques:- Barbara has boxes in three sizes: large, standard, and small. She puts 11 large boxes on a table. She leaves some of these boxes empty, and in all the other boxes she puts 8 standard boxes. She leaves some of these standard boxes empty, and in all the other standard boxes she puts 8 (empty) small boxes. Now, 102 of all the boxes on the table are empty. How many boxes has Barbara used in total?
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Ques:- Currently, the age of a father is three times that of his son. 2.5 years from now, age of the father becomes 2.5 times that of the son. The age of son currently is?
Recent Answer : Added by Bhagirathi H On 2022-09-15 16:37:05:

Fathers before age=3*before sons age—-(1)
After 2.5 years..
Fathers before age+2.5 years =2.5*sons age—-(2)
Substitute (1) in (2),
3*sons before age+2.5 years=2.5*sons age
0.5*sons age=2.5 years
Sons before age=5years
So current age after 2.5 years,
Sons before age+2.5 =5+2.5=7.5 years

Ques:- The average temperature was 37C for Monday to Wednesday and 34C for Tuesday to Thursday . If the temperature on Thursday was 4/5 th of that of Monday,what was the temperature on Thursday?

First write equations from info:
(A) (Mon + Tue + Wed)/3 = 111 Rearrange as ——–> Tue + Wed = 111 – Mon
(B) (Tue + Wed + Thu)/3 =102 Rearrange as ——–> Tue + Wed = 102 – Thu
(C) Thu = 0.8(Mon)

Substitute equation C into B:
(B) Tue + Wed = 102 – 0.8(Mon)

At this point I changed the values for clearer algebra:
Mon = x
Tue + Wed = y

Re-write equations A & B with new values:
(A) y = 111 – x
(B) y = 102 – 0.8x

Solve simultaneous equations:

111 – x = 102 – 0.8x
111 – 102 = x – 0.8x (Re-arraged)
9 = 0.2x
x = 45

Thus, Mon = 45C

Thu = 0.8(45)
Thu = 36C

So the answer is it was 36C on Thursday

Ques:- Express a speed of 36 kmph in meters per second?
Recent Answer : Added by Anjum Parveen On 2022-03-09 16:31:40:

s=36kmph
in meter per second is=36*5/18=>10

Ques:- Four sisters- Rima, Seema, Uma and Shama are playing a game such that the loser doubles the money of each of the other players from her share. They played four games and each sister lost one game in alphabetical order. At the end of fourth game, each sister has Rs. 32. Who started with the lowest amount?
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