Eben331:
Sir, what of those of us that didn't have access to Whatsapp? We like you and other bosses to be with us and contribute on this thread.

Eben331:
Thanks. Which year was that? Can you send them to my email?

Eben331:
After I google searched it, I found out dat rubber latex is a mixture. You can also google search it. Thanks for the explanation tho.

aerozac:
Pls Oga Pes13,Mr Nltaliban kindly add this number to the group. Also an MBBS aspirant following you guys silently. May God help us all
08105100542
Thanks

peterock100:

You can humbly add me too Sir

Nltaliban:



We'll be here too bro. We just felt communicating via whatsapp would be faster.

Don't worry my bosses are capable of running the whatsapp group and nairaland thread simontaeneously

Nltaliban:


I don't know what year that is, but Ui doesn't release different questions every year. Please note that those questions in the practice package are like bonuses. Compared to Ui's Postume questions


Yes, I can send the question to your mail

Xandre:
thanks.

Eben331:
Thank you sir.

Aybalance:
The workings of these are epistles...But I will try...I solved both as simultaneous equations(Elimination method).The equations are...1. a+2b=-4, 2a+b=1, for no 2. -2a-b=7 and -a-3b=7...solving these equations gave me those answers..hope it works out

Nltaliban:


I don't know what year that is, but Ui doesn't release different questions every year. Please note that those questions in the practice package are like bonuses. Compared to Ui's Postume questions


Yes, I can send the question to your mail

Hardebaryor:
Abeg make una add me too. 081

Samsonyte:
Mathematics

1. If the equations ax + by = -4 and bx + ay = 1 are satisfied by x= 1, y = 2, find the value of a and b.

2. The line whose equation is ax + by = 7 passes through the points with coordinates (-2, -1) and (-1, -3). Find the values of a and b. [Hint: substitute the given values of x and y to obtain twi simultaneous equations.]

3. Show that the equations ax + by = c and px + qy = r will have no solution if aq = bp.

Samsonyte:

no1 is correct but no2 is wrong.
the only mistake is -2a
bro u can solve it again using
2a - b = 7
-a - 3b = 7

Orezy5:
CHEMISTRY
1. How much water will be added to 100cm³ of a solution containing 5.3g of Na2CO3 per 250cm³ so as to prepare a 0.05mol/dm³ solution?
a. 400cm³
b. 150cm³
c. 133.3cm³
d. 300cm³
e. 180cm³


2. Calculate the volume of distilled water that should be added to 20cm³ of 0.2mol/dm³ NaOH solution in order to dilute it ten times
a. 180cm³
b. 10cm³
c. 20cm³
d. 200cm³
e. 135cm³

Orezy5:
PHYSICS (EQUILIBRIUM OF FORCES)
1. A uniform beam of length 4m and mass 20kg is supported at both ends. A girl of mass 40kg stands on the beam at a distance of 1.5m from one of the supports. The reactions at the supports are
a. 150N, 250N
b. 250N, 350N
c. 200N, 300N
d. 300N, 300N


2. Weights of 0.2N and 0.5N are placed at the 30cm and 80cm marks respectively on a uniform metre rule. If the metre rule balances horizontally on a knife edge at the 60cm mark, the weight of the metre rule is
a. 0.4N
b. 0.1N
c. 3.3N
d. 0.7N


3. A uniform metre rod of mass 1.5kg is pivoted at one end. A weight of 7N is placed at the 50cm mark of the rod. The vertical force which should be applied at the other end to maintain the rod in equilibrium in the horizontal position is
a. 22N
b. 10.6N
c. 8.5N.
d. 11N


4. A mass of 10g Is attached to the 0cm mark of a light metre rule while a mass of 40g is attached to the other end. The centre of gravity of the system is located at the
a. 20cm mark
b. mid point of the metre rule
c. 60cm mark
d. 80cm mark


5. A force of 8.75N is applied to a mass of 3.5kg placed on a horizontal surface. If the coefficient of friction is 0.2, the acceleration of the mass is
a. 0.5m/s²
b. 1.0m/s²
c. 1.5m/s²
d. 3.3m/s²


7. A crate of mass 25kg moving with a speed of 3m/s on a rough horizontal floor is brought to rest after sliding a distance of 2.5m on the floor. The coefficient of sliding friction is
a. 0.09
b. 0.18
c. 0.36
d. 0.25

Samsonyte:
Mathematics

1. Divide x^3 + 3x^2 - x + 1 by x - 2

2. Divide x^3 + 3x^2 + 1 by x^2 - x + 1

Orezy5:
BIOLOGY


(GENETICS : SEX DETERMINATION AND SEX-LINKED CHARACTERS)


1. If a baby is a female, her mother's ovum must have been fertilized by a sperm carrying the chromosome
a. X
b. XY
c. YY
d. Y


2. In which of the following crosses will all the female offspring be colour blind?
a. colour blind mother x colour blind father
b. colour blind mother x normal father
c. carrier mother x colour blind father
d. carrier mother x normal father


3. A sex linked trait can never be transmitted from
a. mother to daughter
b. father to son
c. mother to son
d. father to daughter


4. Which one of the following characteristics is not sex linked?
a. colour blindness
b. baldness
c. haemophilia
d. muscular dystrophy
e. none of the above


5. Which of the following is true of the children of a haemophilic man who marries a woman that is not haemophilic and does not carry the trait?
a. all their sons will be haemophilic
b. all their daughters will be haemophilic
c. all their daughters will be carriers
d. all their sons will be carriers


6. Women do not suffer from colour blindness because
a. the trait is sex linked
b. only men are colour blind
c. the genes are recessive and sex linked
d. the genes occur on both the X and Y chromosomes


7. The pair of colours that cannot be distinguished by a person suffering from colour blindness is
a. white and blue
b. yellow and green
c. red and blue
d. red and green
e. yellow and red


8. At what stage in the life history of a mammal is the sex of an individual set?
a. at puberty
b. at birth
c. at conception
d. during meiosis
e. at adolescence


9. Which of the following is a diploid cell?
a. spermatogonia
b. spermatozoa
c. ovum
d. spermatids
e. none of the above

Afternoon Bosses

MrEgghead:
AABDCCBCC

Aybalance:
1. B 2. A 3.D 4.D 5.A 7.B

Orezy5:


6/9 sir

Orezy5:

5/6
Check number 3 again

Aybalance:
All I see is -2 in the question...Is that a mistake on part?? If not, explain pls...

Samsonyte:

ohh sory bro, typing error, from the question it is 2 not -2, which means u got it right using -2.

Aybalance:
(1.) x2+5x+9 remainder 19 (2.) x+4 remainder 3x-3