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1,116 questions · 1,917 answers · 461 members contributing
162 threads
Find the the area of a circular ring Whose outer diameter is 10 cm and inner diameter is 6 diameter?
tini1992 asked · 12 Nov 2016
How come? A get 64 out from R^2-r^2
zoom77: thats right; the area of a circular ring is calculated by the formula pi*(R^2-r^2)
Sin 90 =
bennguli asked · 10 Apr 2017
how to find a sine of an angle without a calculator or mathematical table?somebody assist please
bennguli: very helpful thanks alot
What is log 0.1?
bennguli asked · 10 Apr 2017
i have problem with this
(Binary) 11001 + 11001 =
pgdiplw asked · 15 Mar 2017
Can you please explain how to solve this? thanks
zoom77: you can,also,add binary numbers;11001+11001=110010
Calculate the height of an obtuse triangle whose base is X cm and the area is Y square cm.
bennguli asked · 27 Mar 2017
explain please
Find the curved surface area of a cylinder diameter 20cm and length 10cm.
Daivaras asked · 26 Jan 2017
Please write your question here.
What is octal 13 in base 10?
antonik asked · 24 Nov 2016
how???
PART66Online: Hi. Please read this article: electrical4u.com/octal-to-decimal-and...
D in hexidecimal is what number in decimal?
antonik asked · 24 Nov 2016
explain???
pB1B2: A is 10 B is 11 C is 12 D is 13 E is 14 F is 15
100000 in binary is what number in decimal?
tini1992 asked · 8 Nov 2016
Isn't 64 correct??
Dipesh: 1*2^5=32 is the correct answer
Dividing 4 1/2 by 2 1/6 gives the answer of
benzhi asked · 21 Dec 2012
pls anyone.. calculate for goodness sake
JD2016: The confusing thing here is that the answer has not been simplified! You wouldn't normally leave 54/26 as the answer - it can be reduced to 27 /13 or 2 1/13 which LOOKS like the third answer but isn't.
10011 base 2 =
jamesmuendo asked · 5 Jun 2016
Calculation please
PART66Online: 10011 binary = 1 + 2 + 16 decimal :) So answer is 19.
What is the value of X in the diagram shown?
tini1992 asked · 29 Oct 2016
Please can anyone explain this?b
tini1992: Thank you
Determine x in the following: (2x-1)(3x+2) = 0.
tini1992 asked · 24 Oct 2016
Can anyone explain how to work this out? Thnx in advance
D in hexidecimal is what number in decimal?
sujuran asked · 28 May 2016
please explain...
Ivor: A=10, B=11, C=12, D=13, E=14, F=15
Given the log of A exceeds that of B by 4, find the correct statement about A and B.
jamesmuendo asked · 5 Jun 2016
Do the calculation please
Ivor: It is assumed that the log is base 10. So 10 to power 4 = 10*10*10*10 = 10000
(6 - 2) - (6 - 9) / (-3 + (-3))
davidjameswatson1991@live.co.uk asked · 15 Sep 2014
hey guys bit confused with this :(
PART66Online: Hi JD. All good with brackets. :))
What is the curved surface area of a cone if the base is 8cm diameter and the slant height is 10cm?
roshraj asked · 30 Jul 2013
the height mentioned here is slant height?
PART66Online: Hi JD2016. Yes, you are right.
(Binary) 10101 + 11001 =
jamesmuendo asked · 5 Jun 2016
Calculation please
st_eagle: 10101=1*(2^4)+0*(2^3)+1*(2^2)+0*(2^1)+1*(2^0)=16+0+4+0+1=21 11001= do the same thing .... =16+8+0+0+1=25
What is the formula for calculating the curved area of a cone?
jamesmuendo asked · 5 Jun 2016
Calculation please
PART66Online: What calculation do you expect? Question is just about formula, you have to learn it and that is all.
Choose the correct statement
gav_18s asked · 16 Jul 2014
Can anyone explain this?
sauravkatwal: cosec^2*x = 1+ cot^2*x (Trigonometric relation between cosec and cot)
Log 9 - Log 3 + Log 4 =
sujuran asked · 22 May 2016
explain??
PART66Online: Please check log formulas: indiabix.com/aptitude/logarithm/formulas
What is the depth of water in the tank shown if the volume of water is 4000 litres?
skirthisinghe asked · 16 May 2016
pls explain me
squareroot: volume 4000 litres = 4 cubic meters volume = length - width - height so 4 cubic meters = 4m-2m-? then. 4 cubic meters = 4m-2m-0.5m answer is 0.5m or 50cm
If 42% = 15000, what is 100%?
skirthisinghe asked · 16 May 2016
pls explain me
squareroot: (1500042)-100 = 35714.28 but if you no have calculator 42% = 15000 84% must be 30000 100% must more than 30000 that only one choice is 35714
What is the depth of a rectangular tank whose volume is 40 m^3. and has a base 5m by 10m?
skirthisinghe asked · 16 May 2016
pls explainan me
How far does a wheel of 7m radius travel in one revolution?
kufu asked · 31 Jan 2013
2 pgreck r=14pgrek. So is 43.96!!!!
PART66Online: ritchiekitch78, formula for travel of one revolution: D * pi In this case we have radius 7m, so D = 7 * 2 = 14. Then 14 * pi = 14 * 3.14 = 44 (approx)
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