Numbers - math word problems - page 51 of 307
Number of problems found: 6130
- Offset the mean
The mean of 16 numbers is 8. If 2 is added to every number, what will be the new mean? - Plasticine cuboid
Paul makes a cuboid of plasticine with sides 5 cm, 2 cm, and 5 cm. How many such cuboids will he need to form a cube? - EE school boarding
Three vectors, A, B, and C, are related as follows: A/C = 2 at 120 deg, A + B = -5 + j15, C = conjugate of B. Find C. - Two men
2 men or 3 women can do a piece of work in 45 days. Find, in how many days 6 men and 1 women be able to complete the same work. - Two syrups
There are two pots of mixture of syrup and water having ratios 3:2 & 4:5 respectively. What quantity of solution of 1st pot is to be mixed with 3 litre of 2nd pot to get a new mixture where both syrup and water will be same? - What will
What will be the average of the numbers from 1 to 51? - Triangles - segments
How many triangles can be formed with segments measuring one and 2/3 mm one 3/4 mm and 2 1/2 mm - Freezing
A certain freezing process requires that room temperature be lowered from 40°C at the rate of 5°C per hour.What will be the room temperature 12 hours after the process begins? - Ekene and Amina
The probability that Ekene will be alive in 5 years' time is 3/4, and the probability that his wife Amina will be alive in 5 years' time is 2/5. Find the probability that in 5 years' time: a) both of them will be alive b) only Ekene will be alive - Subtract polar forms
Solve the following 5.2∠58° - 1.6∠-40° and give answer in polar form - Cplx sixth power
Let z = 2 - sqrt(3i). Find z6 and express your answer in rectangular form. if z = 2 - 2sqrt(3 i) then r = |z| = sqrt(2 ^ 2 + (- 2sqrt(3)) ^ 2) = sqrt(16) = 4 and theta = tan -2√3/2=-π/3 - One hour
If a pipe can fill a tank in 5 h and another pipe can empty the tank in 10 h, if both pipes are opened simultaneously, how many parts are filled in 1 hour? - Conjugate coordinates
If the rectangular conjugate of the polar vector 12 angle 35 degrees is equal to x+yi, find the sum of x and y. - Vertical components
Find the horizontal and vertical components of the vector which has magnitude 750 as shown in the following figure. - Strawberry - mililiters
The volume of a strawberry cocktail is 1250 ml. How many liters is it and convert it to fractions? - Fraction of a kilogram
Write what part of a kilogram is: a) 10 g b) 45 g c) 7 g - Meter fraction parts
Write which part of the subway is: a) 1 mm b) 5 cm c) 38 mm d) 230 cm - Kilometer fraction meters How many meters are in 1/5 km?
- Four-digit number thinking
I'm thinking four digits. The thousands digit is three times larger than the hundreds digit, which is two times larger than the tens digit. The remaining digits are zeros. - There 27 There are 24 colored cubes in a box. Three-quarters of the cubes are red, four of the cubes are blue, and the rest are green. How many green cubes are in the box? One more blue cube got put into the box. What fraction of the cubes in the box are blue?
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