A hollow cube of size 5cm is taken , with the thickness
of 1cm . it is made of smaller cubes of size 1cm . if the
outer surface of the cube is painted how many faces of the
smaller cubes remain unpainted?
Answer Posted / anni
Answer:: is 488.how this is
first take 5 cm cube so its volume is 5^3=125
and it is hallow of 1 cm thickness so the inner cube has 3cm
edge
so its volume is 27
subtraction 125-27=98
so 98 1cm cubes can be made
in those 98
18 are no color face cubes so no of faces which are not
coloured are 18*6=108
20 are two color face cubes so 20*4=80 faces are not coloured
60 are one colored faces so 60*5=300 faces are not coloured.
so totally 108+80+300 faces are not colored
Is This Answer Correct ? | 10 Yes | 8 No |
Post New Answer View All Answers
A sum 's' is divided into 4 parts. Second person gets Rs 10 more than first.3rd person is Rs 10 more than second, 4th is 10 more than 3rd. How much amount do 1st person get?
f(X)= 2X-1 + f(X-1) if X is not equal to zeroandiff(X=0)=0, Value of f(16)+f(15)-480
If 10x coins are added to the no. of original coins he has (5y + 1) times more coins. Find out how many coins he had originally in terms of x and y
The rectangle box with square base is open at the top. The maximum volume of the box made from 1200 m2 tin,in m3 is?
Every day a driver comes to pick up a man at his office at 6pm. One day the man gets free early and rather than waiting for the driver, he starts walking for home at 4:30pm. The man meets the driver on the way and then reaches home 30minutes earlier than usual. What is the usual time that man takes to reach home from the office?
Fathers age is 5 times his son's age. 4 years back the father was 9 times older than son.Find the fathers' age.
epaulet : shoulder : : ring :?
the difference b/w the compound interest payble half yearly and the simple interest on a certain sum cont out at 10% p.a for 1 year is Rs 25 what is the sum
Six squares of same dimension are kept side by side to make a rectangle with a perimeter of 182 cm. what is the perimeter of each square.
A man said to woman " your only brother's son is my wife'sbrother". How is the woman related to the man's wife..
6 people A,B,C,D,E and F sit around a table for dinner. Since A does not like C, he doesn't sit either opposite or beside C.B and F always like to sit opposite each other. If A is beside F then who is are the two neighbours of B?
Find the next letter in the series Q,W,E,R,T,--
there are 3 nurses and they work altogether only once in a week. no nurse is called to work for 3 consecutive days. nurse 1 is off on tueseday,thursday and sunday. nurse 2 is off on saturday. nurse 3 is off on thursday, sunday. no two nurses are off more than once a week. find the day on which all the 3 nurses were on work.
hai friends i have finished my B.E CSE in 2009.now i have to get a interview opportunity from HP software ,chennai.please any one can send me the last year(2009) interview questions with answers for freshers.i want a full details about HP's interview question with answers,procedures also.such these one year i had try to get my job but still i have not get.so plese send me that what i said....by vijay,chennai
2/3 of people read newspaper A,3/4 read newspaper B.if 38 read both and 8 didn't read any of the 2.how many read A?