a rectangular floor is with length 64mts and breadth 56 mts...
mini no.f identical tiles required to pave entire floor.. ?
what is the least number wich when dcreased by 7 exactly divisble by 12,16,18,21n 28 ?
do explain..
the traffic lights at 3 diff roads change after evry 48 ,72 n 108 sec respctvly. if all change simltaneously at 8:20:00hrs , they wil again change simulataneously at..
Can anybody plz tell me how to find last 2 digits of x^n????
From 4 gentlemen and 4 ladies a committee of 5 is to be formed. The committee consists of a president , a vice-president and three secretaries . What will be the no. of ways of selecting the committee with at least 3 women such that at least one woman holds the post of either a president or a vice president ?
Do explain also.
cPreethiReddy
three strings vibrate in 6,8,12times a sec...if all the three brgin to vibrate simultanosly... thewhat is tha shortest time intervel before all begin to vibrate together
now ?
Rectangular tiles, each of size 70 cm by 30 cm, must be laid horizontally on a rectangular floor of size 110 cm by 130 cm such that the tiles do not overlap. A tile can be placed in any orientation such that its edges are parallel to the edges of the floor. No tile should overshoot any edge of the floor. The maximum number of tiles that can be accommodated on the floor is
1. 4
2. 5
3. 6
4. 7
5. 8
What is the last digit of 2^3^4^5 - 2^3^5^4?
0
2
4
6
8
In how many ways can you wear 6 distinct rings in 5 fingers?
M is the smallest natural number in such a way that when multiplied by 7 gives a number made of 6's only. The sum of the digits of M is N. The last digit of N36 is
1. 6
2. 7
3. 1
4. 3
5. 9
Eleven persons – P, Q, R, S, T, U, V, W, X, Y and Z – live in a residential area called Comet. Each of them works in one of the four companies – Facelook, Goomle, Samtung and Aditas. The number of completed years spent by each person in his/her respective company is one among 2, 5, 6, 8 and 11. None of the eleven has worked anywhere else earlier. No two persons who work in the same company have spent equal number of years in the company. Bar Chart – I shows the number of persons, among the eleven, working in each of the four companies. Bar Chart – II shows the number of persons, among the eleven, according to the number of years for which they have been working.
Q.5 How many person(s) among the eleven have worked for exactly 6 completed years?
Q 6.If none of the four persons who work in Samtung has a work experience of exactly 2 completed years, what can be the minimum sum of the completed years of work experience of the eleven personsplz help me with approach..............
if a number 18! is exactly divisible by 2^n then the possible values of n are ?
options are.7,13,16,19,23
€‹The number of positive integers which are perfect squares, perfect cubes or perfect 4th powers are...
take any range(big one)...
i want the method how this type of ques are to be solved...
if +ve integer x divided by 32, the remaindr is 25 ,then if 2x divided by 12 remiander is ? other than 6 what could be the answer..
A person draws from a pack of 52 ,replaces it and shuffles it.He continues doing it until he draws a heart.What is the probability that he has to make 3 trials?
a)9/64
b)3/64
c)5/64
d)1/64
Approach please
Find the probability that a year chosen at random has 53 mondays?
1)5/58
2)3/28
3)1/28
4)3/28
Approach please
what is the least possible number wich when divided by 4,6,7,9 leaves rem 3 in each case,but when divied by 13 no remainder /......
explain
Hi Puys I need to clear a funda.
If we are asked to find number of zeros of a number such as 10^3 we take log in base 10 and answer comes out as 3 .fine . so 3 . But if we are asked to find number of zeroes after the decimal point till a non zero number appears of the number 10^-3 , after taking log we get -3 . but we know that there are 2 zeros after decimal . here is my doubt . When should we take the value as it is and when we should subtract 1 .
The number of zeros between the decimal point and the first non zero digit in (1/6)^216, given that log 2 = 0.3010 and log 3 = 0.477 is167/168/169/170 ?
Please solve this and explain the funda,
@anytomdickandhary @psk.becks @grkkrg @ananyboss @SatadeepBiswas
The number of natural numbers less than 1000 that can be expressed as the difference of two perfect squares in at least one way is
a 750
b 792
c 810
d 749
answer and approach please
thanks in advance
A 3 digit number N is such that it is divisible by 11 . also N/11 is equal to sum of the squares of digits of N . N can take ___ values .
a 1
b 2
c 3
d 4
answer and approach please