Math Quiz

In a park, the ratio to the number of boys to the number of girls was 7:8. After 36 boys left and 100 girls arrived, the ratio of the number of boys to the number of girls became 2:5. How many boys were there at first?

Two blouses, three dresses and one shirt cost $41. Three blouses, four dresses and ten shirts cost $100. How many does one dress costs?

What is the average height of a desk

• 50 cm

• 60 cm

• 70 cm

• 65 cm

The position of Tom in a garden with corners A, B, C and D is shown below. Tom is north-east of one of the corners. Which corner is it? ⬆️ = north

• A

• B

• C

• D

John pushes two sticks, A and B straight into the ground until the length of each stick that is above the ground is the same. 1 third of A and 1 eighth of B are in the ground. The length of A in the ground is 30 cm longer than the length of B in the ground. What is the total length of sticks A and B?

• 318cm

• 258cm

• 222cm

• 162cm

Jerry needs 200 pieces of ribbon, each of length 110cm, to decorate a room for a party. Ribbon is sold in rolls of 25m each. What is the least number of rolls of ribbon that Jerry needs to buy?

Two trains are traveling in between London and York on the same track. Their trips start at the same time. The track is 4200 kilometers long. Train A is traveling from London to York at a rate of 95 kilometres per hour. Train B is flying along from York to London at 115 kilometres per hour. How long will it take for the two trains to meet?

Five identical semicircles are arranged in an order shown beside. Find the diameter of a semicircle.

Pupils in a school are put into two groups for a learning journey. ⅖ of the pupils are in Group A and the rest are in Group B. ¼ of the pupils in Group A are girls. In the school, ³⁄₁₀ of the pupils are girls.

Given that 1+2+3+4+5…+93+94+95+96+97, find the digit in the ones place of the sum of the first 97 numbers.