Which of the following statements is true about the number (8^25 - 62), which is in the decimal system, when converted in to the octal (base 8) system?
a There are 26 digits in the number.
b There are 24 sevens and one 2 in the number.
c There are 24 sevens, one 0 and one 2 in the number.
d There are 23 sevens, one 0 and one 2 in the number.
pls share your approach
dr Jekyll an mr Hyde are climbing an upward-moving escalator. jekyll ascends twice as many steps per minute as hyde does. in all jekyll climbs 56 steps to reach top, while hyde climbs only 44 steps (as he is slower and takes more time , the escalator ends up ascending for longer duration). if the escalator had been switched off what is the total number of steps they climb together to reach the top??
0 voters
Which is the best combination of test series with IMS eTest Series????
PS - In serious dilemma. Need immediate help before its too late to reap the benefits of the test series.
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No of positive integral triplets of the form (a,b,c) if abc = 36 (or any other value) ... Approach plzz ?
Hi guys, how do you solve this qn?
What is the number of zero's in the expression
(2!)^2!+(4!)^4!+(8!)^8!+(9!)^9!+(10!)^10!+(11!)^11!
off topic but don't know where to post. I am not able to login to byju's student home page from any of my browsers. Anyone else facing same issue?
If Neel and Swati leave their houses at 10:00,walking directly towards each other,they meet at 10:10.If Neel leaves his house at 10:00 and Swati leaves her house at 10:03,again walking towards each other,they meet at 10:11.At what time will Swati reach Neel's house if she leaves her house at 10:00?
please share the approach
share your approach pls
Brass alloy is made by mixing copper and zinc in a certain proportion. The following table shows the information related to four alloy - copper used in each alloy was of a different quality, quantity and price, whereas zinc used in each alloy was of the same quality and price @ Rs 150/kg. In none of the alloy, Weight of zinc is more than the weight of copper.
Alloy Cu wt Cu rate Zn wt Brass rate
1 12 90 w a
2 16 60 x b
3 18 75 y c
4 20 102 z d
Cu = copper
Zn = Zinc
wt = weight (kg)
rate in Rs/kg
Price of brass alloy per kg = (weight of copper x rate of copper + weight of zinc x rate of zinc)/(weight of copper + weight of zinc)
It is also known that W, X, Y, Z, A, B, C and D are natural numbers.
Q.39
How many values can B take ?
3
4
5
more than 5
someone please tell me a online source to practice good DI questions?
@scrabbler @Malfurion @muxi @akki307 @doomedforlife @hksparadox
Puys....I have got this problem where I am unable to decide which LR or DI sets to be chosen...Sometimes the familiar ones turn out to be the toughest and the unfamiliar ones become easy...sometimes it is the other way around.
Could u please provide a way or your way of doing the LRDI part of the test..This was seen by me in the recent SIMCATs as well as CL Mocks.I am a bit weak in LRDI...I have been practising a lot..SOmetimes I am able to judge correctly ...other times not so well.
Shud I go serial wise...or even if I choose how much time shud I take to "naap-tol" the different sets
Class X has 4 sections A,B,C and D. Avg. weights of students of A,B,C together is 45kg, of ACD is 55, of ABD is 50 and BCD is 60 kg. What can be the avg weight of the students of all sections together.
a) 47.6
b)49.9
c)53.7
d)56.5.
Please explain with approach.
For posts/queries/info related to SNAP 15, follow the thread..
In a school of 100 students each of them play at least one sport among cricket, football, volleyball, basketball, hockey and tennis.It is known that exactly 90 play cricket, 80 play football, 70 play hockey, 60 play basketball , 40 play volleyball and 10 play tennis.
A) What is the maximum number of students who play exactly five of the six games?
40 50 60 70 none of these
B) What is the maximum number of students who play exactly four of six games
60 70 80 50 none of these
Pls. give a proper explanation with equations. How to maximise , minimise these sets using EQUATIONS.
coefficient of x^4 in the expansion of (1-x+x^2)^5