Lurve: i've tried but i definitely can't solve this :-

Lemme help you out....14/(rt5-rt3)= rationalizing the denominator, which means multiply both denominator and numerator with the inverse sign of the denominator......meaning of this big grammer is 14 (rt5+rt3)/(rt5-rt3) (rt5+r3)
14(rt5+rt3)/ (rt5) square - (rt3) square (difference of two squares)
14(rt5+rt3)/5-3 (square root and square cancels out)
14(rt5+rt3)/2
7(rt5+rt3)= 7rt5 + 7 rt3

TopSpot: This is the answer to the questions by Stephen:

1C, 2C, 3A, 4B, 5E, 6A, 7C, 8C, 9D, 10C, 11B, 12D, 13C. Please mark urself

Thank you boss

Find a two-digit number such that 3 times the unit digit is 2 less than twice the tens digit and the number is 18 greater than the number obtained by reversing the digits
A) 42 b)24 c)47 d)72 e)74

Hi, mathematics no b my friend.

oyestephen: Find a two-digit number such that 3 times the unit digit is 2 less than twice the tens digit and the number is 18 greater than the number obtained by reversing the digits
A) 42 b)24 c)47 d)72 e)74

(A)42

Pls, does unilag or any nigerian university accept GCE O/L results from UK for admission?most especially for Phamarcy and Medicine.

Pls, does unilag or any nigerian university accept GCE O/L result from UK for admission? Most especially for Phamacy and Medicine

yomiun: Pls, does unilag or any nigerian university accept GCE O/L results from UK for admission?most especially for Phamarcy and Medicine.

They shuld b collectin dah,buh check the Brochure for comfirmation.Wat course r u goin for n aw was yur jamb?

@farano:
Hi, mathematics no b my friend.

Which is yur frnd?

I intend to go for pharmacy

@farano:
Hi, mathematics no b my friend.

You may need a personal tutor for some time, then you'll gradually climb the ladder of success in mathematics

labodinho: (A)42

Show workings boss
The height and base of a triangle are in the ratio 1:3. If the area of the triangle is 216cm square. Find the length of the base....

yomiun: I intend to go for pharmacy

Watz yur jamb score n yur O/L subjtz n grades?

oyestephen:
You may need a personal tutor for some time, then you'll gradually climb the ladder of success in mathematics
Show workings boss
The height and base of a triangle are in the ratio 1:3. If the area of the triangle is 216cm square. Find the length of the base....

Solution to this triangle stuff...Height and base has ratio 1:3 so Height=1 and Base=3 since base and height are unknown for there specific value we replace as X,so that height=1*X=X and base=3*X=3X....Area of a triangle=1/2*base*height...solution...216cm sqaure=1/2*3X*X 216=1/2*3Xsqaure.......216=3X sqaure/2......216*2=3x sqaure....3xsqaure=432......xsqaure=432/3.......xsqaure=144......taking sqaure to the other side bcumz sqaure root.....x=sqaure root of 144.....X=12...subt. x for base and height .base=3x=3(12)=36......height=X and x=12 i.e height=12...Q.E.D

Godwin88: Ur GP is on the high side. I graduated 4rm federal poly Ilaro, Ogun state and havn my I.T @ the moment. Are u done with ur I.T?

yes

labodinho: Solution to this triangle stuff...Height and base has ratio 1:3 so Height=1 and Base=3 since base and height are unknown for there specific value we replace as X,so that height=1*X=X and base=3*X=3X....Area of a triangle=1/2*base*height...solution...216cm sqaure=1/2*3X*X 216=1/2*3Xsqaure.......216=3X sqaure/2......216*2=3x sqaure....3xsqaure=432......xsqaure=432/3.......xsqaure=144......taking sqaure to the other side bcumz sqaure root.....x=sqaure root of 144.....X=12...subt. x for base and height .base=3x=3(12)=36......height=X and x=12 i.e height=12...Q.E.D

well done, you guyz're doin' a great job!

oyestephen: Find a two-digit number such that 3 times the unit digit is 2 less than twice the tens digit and the number is 18 greater than the number obtained by reversing the digits
A) 42 b)24 c)47 d)72 e)74

from d 1st sentence:
3(x+y)= 2(10)-2
3x+3y= 20-2
3x+3y= 18
x+y= 6. . . . . .(i)

from d 2nd sentence:
(10x+y) - (10y+x)= 18
10x+y-10y-x= 18
10x-x+y-10y= 18
9x-9y= 18
x-y= 2. . . . . .(ii)

usin' eliminatn method:
2x= 8
x= 4
substitute x= 4 in2 eqn (ii):
4-y= 2
-y= 2-4
y= 2

check:
42 - 24= 18

I cant categorically work diz out again,since my ogas at da top av done it...dr. Stephen,well done o....@labodz,well done...@octario..i see you,@farano,i see you o btw,what were you doin on u.i's thread ?,@aurorae,ya handwritting is found wanting here o...,topspot,where you dey ? In short,i greet everyone....success is ours in Jesus' name....I hope we wont be suprised if unilag gives us our jamb combinations as postume tests [dodging stones]...i didnt say thats whats gonna happen na....#panting#i was juz saying we should be prepared ...good day

yemmytcm: I cant categorically work diz out again,since my ogas at da top av done it...dr. Stephen,well done o....@labodz,well done...@octario..i see you,@farano,i see you o btw,what were you doin on u.i's thread ?,@aurorae,ya handwritting is found wanting here o...,topspot,where you dey ? In short,i greet everyone....success is ours in Jesus' name....I hope we wont be suprised if unilag gives us our jamb combinations as postume tests [dodging stones]...i didnt say thats whats gonna happen na....#panting#i was juz saying we should be prepared ...good day

Long time. Dat stephen question don hide u for inside hole abi? Hahaha

Where is everyone sef? Is like u all have done change of course & institution.

@Farano. we r here,we only ran away 4 maths ques. ans. this Nigeria has a. over 200 ethnic groups b. over 300 ethnic groups c. over 400 enthnic groups d. 3 ethnic groups. ques 2. ballet & tango are types of a. song b. sports c. dancing d. worshipping gods.

@eni....i think its over 400 ethnic groups,then ballet and tango is a typa dance

@farano:
Where is everyone sef? Is like u all have done change of course & institution.

me i am here wit you,check under ya bed

@farano:
Long time. Dat stephen question don hide u for inside hole abi? Hahaha

lol....abi na,these guys wanna blow my head ni...esp.this medicos....how far how you dey na

yemmytcm: lol....abi na,these guys wanna blow my head ni...esp.this medicos....how far how you dey na

I dey o. I'm waiting 4 unilag merit list or wat do u fink? Dont worry I will beg oga stephen 2 take it easy ,also beg unilag 2 set simple questions.lol

@farano:
I dey o. I'm waiting 4 unilag merit list or wat do u fink? Dont worry I will beg oga stephen 2 take it easy ,also beg unilag 2 set simple questions.lol

I'll try to take it easy sha
1) Find the tax on an income of #150,000. If no tax is paid on the first #50,000 and tax is paid at #50 in #1000 on the next #40,000 and at #55 in #1000 on the remainder ?
A) #5000 b)#5300 c) #5400 d) #5200 e)#5500

2) If the mean of five consequtive numbers is 30, find the largest of the numbers
A)28 b)32 c)30 d)3 e)29

1) Find the tax on an income of #150,000. If no tax is paid on the first #50,000 and tax is paid at #50 in #1000 on the next #40,000 and at #55 in #1000 on the remainder ?
A) #5000 b)#5300 c) #5400 d) #5200 e)#5500

2) If the mean of five consequtive numbers is 30, find the largest of the numbers
A)28 b)32 c)30 d)3 e)29

oyestephen: Find a two-digit number such that 3 times the unit digit is 2 less than twice the tens digit and the number is 18 greater than the number obtained by reversing the digits
A) 42 b)24 c)47 d)72 e)74

ans:
let d tens digit be x n unit be y,
3y+2=2x
3y+2=2x........(i) *3

10x+y=(10y+x)+18
10x-x=10y-y+18
9x=9y+18
9y+18=9x........(ii) *1

9y+6=6x........(iii)
substract eqn (iii) frm (ii)
0+12=3x
x=4
put x=4 in eqn (iii)
9y+6=24
9y=18
y=2
therefore x=4;y=2
d number (xy)=42
~salzyswaag~
i rep chem eng.

oyestephen: 1) Find the tax on an income of #150,000. If no tax is paid on the first #50,000 and tax is paid at #50 in #1000 on the next #40,000 and at #55 in #1000 on the remainder ?
A) #5000 b)#5300 c) #5400 d) #5200 e)#5500

2) If the mean of five consequtive numbers is 30, find the largest of the numbers
A)28 b)32 c)30 d)3 e)29

ans:
1)total amount=#150000
tax on #40000 at d rate of #50 per #1000 will be:
= 40000*50/1000=#2000
tax on d remainder:
remainder=150000-(40000+50000)=150000-90000=60000
tax at d rate of #55 per #1000 will be:
= 60000*55/1000=#3300
since no tax on d 1st 50000,
total tax=2000+3300=5300
N.B:ALL VALUES R IN #

2)let d 1st number be x
d 5 consecutive numbers will be
x,x+1,x+2,x+3,x+4.
Mean=x+x+1+x+2+x+3+x+4/5=30
:5x+10/5=30
5x+10=30*5
5x+10=150
5x=150-10
5x=140
x=140/5=28
d largest number=x+4=28+4=32
therefore d largest number=32.

~salzyswaag~
i rep chem eng

Salzyswaag:
ans:
1)total amount=#150000
tax on #40000 at d rate of #50 per #1000 will be:
= 40000*50/1000=#2000
tax on d remainder:
remainder=150000-(40000+50000)=150000-90000=60000
tax at d rate of #55 per #1000 will be:
= 60000*55/1000=#3300
since no tax on d 1st 50000,
total tax=2000+3300=5300
N.B:ALL VALUES R IN #

2)let d 1st number be x
d 5 consecutive numbers will be
x,x+1,x+2,x+3,x+4.
Mean=x+x+1+x+2+x+3+x+4/5=30
:5x+10/5=30
5x+10=30*5
5x+10=150
5x=150-10
5x=140
x=140/5=28
d largest number=x+4=28+4=32
therefore d largest number=32.

~salzyswaag~
i rep chem eng

my guy ur head is there

correction: 1) b. 2) c.

eni orisha: correction: 1) b. 2) c.

1/2...salzyswaag was correct 1.b 2.b

TopSpot: Me no be. Maths Guru ooo. All the tinz wey I don do before I jus dey forget. I don do maths taya I no retain especially maths formulars. Maths gurus wetin be una secret potion? I salute unilag aspirants in d house ooo. If you are deficient in one subject, don't let it deter you from performing exellent in those you are good in. As for the hard one, make God help. Oyestephen and co. Abeg no ignore my kweson ooo

practise makes perféct...u just have to devote more time to it...