# High quality video lessons and tutorials

**279 Video Lessons**

- Ntutu had cows, sheep and goats in his farm. The number of cows was 32 and number of sheep was twelve times the number of cows. The number of goats was 1344 more than the number of sheep.

Form 1, Mathematics: IntegersDate posted: March 15, 2019.

- A number m is formed by writing all the prime numbers between 0 and 10 in an ascending order. Another number n is formed by writing all the square numbers between 0 and 10 in a descending order.
A number m is formed by writing all the prime numbers between 0 and 10 in an ascending order. Another number n is formed by writing all the square numbers between 0 and 10 in a descending order. a) Find m – n; b) Express (m-n) as a product of its prime factors.

Form 1, Mathematics: IntegersDate posted: March 15, 2019.

- All prime numbers less than ten are arranged in descending order to form a number.
a) Write down the number formed.
b) State the total value of the second digit in the number formed in (a) above
All prime numbers less than ten are arranged in descending order to form a number. a) Write down the number formed. b) State the total value of the second digit in the number formed in (a) above

Form 1, Mathematics: IntegersDate posted: March 15, 2019.

- Work out the question below

Form 1, Mathematics: IntegersDate posted: March 15, 2019.

- A square room is covered by a number of whole rectangular slabs of sides 60cm by 42 cm. Calculate the least possible area of the room in square metres.
A square room is covered by a number of whole rectangular slabs of sides 60cm by 42 cm. Calculate the least possible area of the room in square metres.

Form 1, Mathematics: IntegersDate posted: March 15, 2019.

- A fruit vendor bought 1948 oranges on a Thursday and sold 750 of them on the same day. On Friday, he sold 240 more oranges than on Thursday.
A fruit vendor bought 1948 oranges on a Thursday and sold 750 of them on the same day. On Friday, he sold 240 more oranges than on Thursday. On Saturday he bought 560 more oranges. Later that day, he sold all the oranges he had at a price of ksh 8 each. Calculate the amount of money the vendor...

Form 1, Mathematics: IntegersDate posted: March 15, 2019.

- Without using a calculator evaluate the question below

Form 1, Mathematics: IntegersDate posted: March 15, 2019.

- In a certain commercial bank, customers may withdraw cash through one of the two tellers at the counter. On average, one teller takes 3 minutes while the other teller take 5 minutes to serve a customer.
In a certain commercial bank, customers may withdraw cash through one of the two tellers at the counter. On average, one teller takes 3 minutes while the other teller take 5 minutes to serve a customer.

Form 1, Mathematics: IntegersDate posted: March 15, 2019.

- Without using a calculator, evaluate

Form 1, Mathematics: IntegersDate posted: March 15, 2019.

- Work out the following question

Form 1, Mathematics: IntegersDate posted: March 15, 2019.

- Evaluate the question below

Form 1, Mathematics: IntegersDate posted: March 15, 2019.

- Evaluate the following question

Form 1, Mathematics: IntegersDate posted: March 15, 2019.

- Which one of the following is the correct order?

Class 8, Mathematics: NumbersDate posted: March 15, 2019.

- A train left Mombasa on Monday at 2125 h and took sixteen and a half hours to reach Kisumu. When did the train reach Kisumu?
A train left Mombasa on Monday at 2125 h and took sixteen and a half hours to reach Kisumu. When did the train reach Kisumu? A.Tuesday 1.55 a.m B.Tuesday 1.55 p.m C.Monday 1.55 a.m D.Wednesday 1.55 p.m

Class 8, Mathematics: Measurements- time,speed and temperatureDate posted: March 15, 2019.

- A shopkeeper displayed the prices of items in his shop as follows:
1 kg of sugar sh 48
1 kg of cooking fat sh 110
1 packet of salt sh 25
1 kg packet of tea leaves sh 155
1 loaf of bread sh 20
A shopkeeper displayed the prices of items in his shop as follows: 1 kg of sugar sh 48 1 kg of cooking fat sh 110 1 packet of salt sh 25 1 kg packet of tea leaves sh 155 1 loaf of bread sh 20

Class 8, Mathematics: Measurement-moneyDate posted: March 15, 2019.

- In order to complete digging a shamba in 28 days, a farm manager employed 12 workers. How many more workers should be employed in order to complete the work in 21 days?
A.4 B.16 C.9 D.3
In order to complete digging a shamba in 28 days, a farm manager employed 12 workers. How many more workers should be employed in order to complete the work in 21 days? A.4 B.16 C.9 D.3

Class 8, Mathematics: Ratio and proportionsDate posted: March 14, 2019.

- Opio borrowed sh 54 000 from a bank which charged interest at the rate of 18% per annum. He repaid the whole amount of the loan after 8 months. How much money did he pay back?
A.sh 6480 B.sh 60480 C.sh 14 580 D.sh 77 760
Opio borrowed sh 54 000 from a bank which charged interest at the rate of 18% per annum. He repaid the whole amount of the loan after 8 months. How much money did he pay back? A.sh 6480 B.sh 60480 C.sh 14 580 D.sh 77 760

Class 8, Mathematics: Measurement-moneyDate posted: March 14, 2019.

- Mwongela paid sh 330 for a pocket radio after the shopkeeper gave him a 12% discount. What was the marked price of the radio?
A.sh 300 B.sh 369.60 C.sh 375 D.sh 350
Mwongela paid sh 330 for a pocket radio after the shopkeeper gave him a 12% discount. What was the marked price of the radio? A.sh 300 B.sh 369.60 C.sh 375 D.sh 350

Class 8, Mathematics: Measurement-moneyDate posted: March 13, 2019.

- What is the value of x in the equation?
2(3x – 2) = 3x + 8

Class 8, Mathematics: AlgebraDate posted: March 13, 2019.

- What is 45,273 rounded off to the nearest hundred?
A. 45,300 B.45,000 C.45,200 D.45,270
What is 45,273 rounded off to the nearest hundred? A. 45,300 B.45,000 C.45,200 D.45,270

Class 8, Mathematics: NumbersDate posted: March 13, 2019.

- What is the value in the question below?

Class 8, Mathematics: Operations on numbersDate posted: March 13, 2019.

- Which one of the following numbers is eleven million eleven thousand one hundred and one?
A. 11011011 B.11011101 C.11101101 D.11011001
Which one of the following numbers is eleven million eleven thousand one hundred and one? A. 11011011 B.11011101 C.11101101 D.11011001

Class 8, Mathematics: NumbersDate posted: March 13, 2019.

- In a race, Ogot running at a constant speed of 8m/s, is 5m ahead of Ondiek. If Ondiek maintains a constant speed of 10m/s, how far does Ondiek run before catching up with Ogot?
In a race, Ogot running at a constant speed of 8m/s, is 5m ahead of Ondiek. If Ondiek maintains a constant speed of 10m/s, how far does Ondiek run before catching up with Ogot?

Form 2, Mathematics: Linear MotionDate posted: March 13, 2019.

- Three business partners, Kioko, Njau and Osaiko, are to share sh 12000 in the ratio 5:6:x respectively. If Kioko received sh 4,000 determine the value of x.
Three business partners, Kioko, Njau and Osaiko, are to share sh 12000 in the ratio 5:6:x respectively. If Kioko received sh 4,000 determine the value of x.

Form 1, Mathematics: Rates, Ratios, Proportions and PercentagesDate posted: March 13, 2019.

- The cost of 2 jackets and 3 shirts was ksh. 1800. After the cost of a jacket and that of a shirt were increased by 20%, the cost of 6 jackets and 2 shirts was ksh. 4800. Calculate the new cost of a jacket and that of a shirt.
The cost of 2 jackets and 3 shirts was ksh. 1800. After the cost of a jacket and that of a shirt were increased by 20%, the cost of 6 jackets and 2 shirts was ksh. 4800. Calculate the new cost of a jacket and that of a shirt.

Form 1, Mathematics: Linear EquationsDate posted: March 13, 2019.

- Find the cos(90 – x)
^{0}giving the answer to 4 significant figures.

Form 2, Mathematics: Trigonometry 1Date posted: March 11, 2019.

- Factorize completely the expression below

Form 2, Mathematics: Algebraic ExpressionsDate posted: March 11, 2019.

- Use logarithms to evaluate the question below

Form 2, Mathematics: Evaluation of Numerical ExpressionsDate posted: March 11, 2019.

- Find the value of x which satisfies the equation: 16
^{x2}=8^{4x-3}Find the value of x which satisfies the equation: 16

^{x2}=8^{4x-3}

Form 2, Mathematics: IndicesDate posted: March 11, 2019.

- The sum of interior angles of a regular polygon is 1800
^{0}. Find the size of each exterior angle.The sum of interior angles of a regular polygon is 1800

^{0}. Find the size of each exterior angle.

Form 1, Mathematics: Angles and Plane FiguresDate posted: March 11, 2019.