Get premium membership and access questions with answers, video lessons as well as revision papers.
- A pool of water with surface area of 0.6 ha has a uniform depth of 3m. A pipe drains the pool at the rate of 200 liters per second.How many hours does it take to empty the pool?
A pool of water with surface area of 0.6ha has a uniform depth of 3m. A pipe drains the pool at the rate of 200 liters per second.How many hours does it take to empty the pool?
Date posted: February 27, 2019
- Find the velocity of a particle whose displacement s is given by;
S=t3 – 5t2 + 3t + 10 at t=5 seconds.
Find the velocity of a particle whose displacement s is given by;
S=t3 – 5t2 + 3t + 10 at t=5 seconds.
Date posted: February 27, 2019
- Find the area of P in the following question
Find the area of P in the following question
Date posted: February 27, 2019
- Obtain the centre and the radius of a circle whose equation is;
X2 + y2 -10y +16=0
Obtain the centre and the radius of a circle whose equation is;
X2 + y2 -10y +16=0
Date posted: February 27, 2019
- Expand (1+x)7 up-to the fourth term.
Expand (1+x)7 up-to the fourth term.
Date posted: February 27, 2019
- Find the value of x in the question below
Date posted: February 27, 2019
- The line 3x – 2y + k = 0 passes through point A[6, 2] and is parallel to the line ax – 2y + 7 = 0.
Find the values of a and k
The line 3x – 2y + k = 0 passes through point A[6, 2] and is parallel to the line ax – 2y + 7 = 0.
Find the values of a and k
Date posted: February 27, 2019
- What was the total profit in shillings in the question below
Date posted: February 27, 2019
- Solve for x
4x + 22x -2 = 126
Solve for x:
4x + 22x -2 = 126
Date posted: February 27, 2019
- Mr Mwololo sells two types of mathematical sets, type A and type B. Twenty four type A and ten type B cost. Kshs. 2,520...
Mr Mwololo sells two types of mathematical sets, type A and type B. Twenty four type A and ten type B cost. Kshs. 2,520, while eighteen type A and thirty type B cost kshs. 3240. Mr. Muya bought eighteen type B. How much did he pay for them?.
Date posted: February 27, 2019
- A two digit number is such that the sum of the digits is 15. When the digits are reversed the new number formed is more than the original number by 27.
Find the number
A two digit number is such that the sum of the digits is 15. When the digits are reversed the new number formed is more than the original number by 27.
Find the number
Date posted: February 27, 2019
- The G.C.D of two numbers is 18 and their L.C.M is 630. If one of the numbers is 126, find the other number
The G.C.D of two numbers is 18 and their L.C.M is 630. If one of the numbers is 126, find the other number
Date posted: February 27, 2019
- The interior angle of regular polygon exceeds the exterior angle by 135o. Find the number sides of the polygon.
The interior angle of regular polygon exceeds the exterior angle by 135o. Find the number of sides of the polygon.
Date posted: February 27, 2019
- Wambua saves 1,040 shillings in the first year of his employment and each year afterwards saves 145 more than the preceding year.
Wambua saves 1,040 shillings in the first year of his employment and each year afterwards saves 145 more than the preceding year. How much will she have saved by the time he retires in 30 years time?
Date posted: February 27, 2019
- Find the distance between the centre A of a circle whose equation is
2x2 + 2y2 + 6x + 10y + 7 = 0 and the point B(–4, 1).
Find the distance between the centre A of a circle whose equation is
2x2 + 2y2 + 6x + 10y + 7 = 0 and the point B(–4, 1).
Date posted: February 27, 2019
- Three grades A, B and C of rice were mixed in the ratio 3:4:5. The cost per kilogram of each of the grades A, B and C was Ksh 120, Ksh 90 and Ksh 60, respectively.
Three grades A, B and C of rice were mixed in the ratio 3:4:5. The cost per kilogram of each of the grades A, B and C was Ksh 120, Ksh 90 and Ksh 60, respectively.
Calculate the cost of one kilogram of the mixture.
Date posted: February 27, 2019
- The mass of a relative density bottle is 20g when empty,70g when full of water and 95g full of another liquid. Determine the density of the liquid X.
The mass of a relative density bottle is 20g when empty,70g when full of water and 95g full of another liquid. Determine the density of the liquid X.
Date posted: February 27, 2019
- When marking the fixed points on a thermometer, it is observed that at 00C, the mercury thread length is 1 cm and 6 cm at 1000C. What temperature would correspond to a length of 4 cm?
When marking the fixed points on a thermometer, it is observed that at 00C, the mercury thread length is 1 cm and 6 cm at 1000C. What temperature would correspond to a length of 4 cm?
Date posted: February 27, 2019
- An electric crane lifts a load of 2000 kg through a vertical distance of 3.0 m in 6s. Determine:
i)work done.
ii)power developed
iii)efficiency of the crane if it is operated by an electric motor rated 12.5 kw.
An electric crane lifts a load of 2000 kg through a vertical distance of 3.0 m in 6s. Determine:
i)work done.
ii)power developed
iii)efficiency of the crane if it is operated by an electric motor rated 12.5 kw.
Date posted: February 27, 2019
- A mass of 84kg has a weight of 420N on a certain planet. Calculate the acceleration due to gravity on this planet.
A mass of 84kg has a weight of 420N on a certain planet. Calculate the acceleration due to gravity on this planet.
Date posted: February 27, 2019