Complex unfamiliar Questions Flashcards
There are 240 students. The ratio of students who like science is 5:3. The ratio of students who like maths is 5:7. There is 86 students who like both how many dislike science and maths?
Step 1: Draw a Venn diagram of all the people who like maths and science.
Step 2: Write the ratios and total them both up and calculate how many students from each corrrect ratio likes maths or science.
Step 3: Takeaway the total no of students who like science or maths from the students who like Both.
Step 4: Add the final no together and takeaway from the total.
Step 5: Solve (Dislikes is the number of people outside of the circles).
A string of 50m long is pegged between the ground and the top of a flagpole. It just touches the head of Jess who is 5m away from the point where the string is held to the ground. If Jess is 1.5m tall find the height of the flagpole.
Step 1: Draw a diagram.
Step 2: Use Pythagorus thoerum to find the hypotenuse.
Step 3: Divide the total length by the hypotenuse length.
Step 4: This is the scale factor which you then use to find the height by multiplying Jesses height and the save factor.
A 2.05m tall man standing in front of a street light 3.08m high casts a 1.5m shadow.
Calculate the angle of elevation between the top of the shadow to the light?
Calculate how far is the man from the bottom of the light pole?
Step 1: Draw a diagram.
Step 2 Use negative tan to find the angle.
Step 3: Use the angle to find the total length between the light pole and shadow.
Step 4: Takeaway shadow length from the total length.
Step 5: Solve and answer.
