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In the morning, 70% of the butterflies in a butterfly park were yellow coloured and the rest were brown coloured. Over the next few hours, 80 more butterflies came into the park. With the addition, the number of yellow butterflies went up by 20% and the number of brown butterflies increased by 120%. Find out the number of butterflies in the butterfly park now.
Last week, Andrew purchased 10 pair of shoes at a discount of 40%. He was charged $15 for one pair of shoes. (a) Find the original price of each pair of shoes. Following this purchase Andrew became eligible for special additional discounts. Therefore, he was given a 45% discount this week, when he bought another 8 pairs of shoes. ...
A rectangular fish tank is filled with water to a height of 8 cm. Its rectangular base measures 25 cm by 20 cm. When an additional 8.5 litres of water are poured into the tank, the water level rises to `5/6` of the height of the tank. What is the height of the tank?
The length of AB is 28 cm. XC is 4 cm and AF is 25% longer than AB. In addition to the above, XY is 5% shorter than XC. What is the area of the region shaded yellow? Notes to students: Round your answer off to 2 decimal places ...
There are rows of 15 chairs in a school hall. 6 additional chairs were brought into the hall and all chairs were rearranged into rows of 12. Now, there are 10 more rows than before. How many chairs were there in the school hall at first?