Vita is setting up a factory to manufacture tennis balls. If he buys a machine that costs ៛26968, then he can manufacture a tennis ball for ៛2.9. On the other hand, if he buys a machine that costs ៛17800, he can manufacture a tennis ball for ៛5.3. How many tennis ball should he manufacture, so that total cost is the same no matter which machine he buys?
A grocer purchased 40 kg of pulses at ៛12 per kg and mixed it with 150 kg pulses at ៛16 per kg. At what rate should he sell the mixture (per kg) to gain 16%?
In the following figure, AD=AB,AD=AB,AD=AB,∠DAB=∠DCB=∠AEC=90∘∠DAB=∠DCB=∠AEC=90∘∠DAB=∠DCB=∠AEC=90∘ and AE=13cm.AE=13cm.AE=13cm. Find the area of the quadrilateral ABCD.ABCD.ABCD.
A room is 13m13m13m long and 11m11m11m broad. It has one door measuring 1m1m1m by 1.7m1.7m1.7m and two windows each measuring 1.4m1.4m1.4m by 1.4m1.4m1.4m. The cost of painting the walls of the room at the rate of ៛140 per m2 is ៛100287.6. Find the height of the room.
The graph below shows the average daily circulation (in thousands) of two newspapers (A and B) for ten years. Find the difference in the average daily circulation of two newspapers in the year when the difference in average daily circulation was maximum.
Lemmy purchases two video games for ៛2510 each. She sold these video games, losing 8% on one and gaining 6% on the other. Find her gain or loss percent in the whole transaction.
Find the compound interest of ៛50000 after 2 years, compounded annually. The rate of interest is 11% per annum during the first year and 16% per annum during the second year.
It is Brianna's birthday today and she distributed toffees to her classmates. The toffees were in a bag as shown below. Brianna's puts her hand in the bag and takes out a toffee without looking. What is the probability that she picked out a striped toffee?
An express train from Serei Saophoan to Phnom Penh runs every 5th day. If the train went on Tuesday, after how many days will the train run on a Wednesday?