# Quiz 112 – Round 3 – Maths

1. What is the next number in the following sequence: 2, 6, 14, 30, …

62 (multiply the previous number by two and then add two)

2. How many seconds are there in 12 minutes?

720

3. What is seventeen squared?

289

4. If Carl buys a bottle of wine for £6.59 and two bottles of beer for £1.29 each, how much change does he get from a £10 note?

83 pence

5. How many degrees are there in three right angles?

270

6. Which is the closest prime number to 100?

101

7. How many edges are there on a tetrahedron?

6 (A tetrahedron is a triangular-based pyramid – note that the question asks for edges, not faces, of which there are 4)

8. What is the mean of 12, 14, 19, 27 and 53?

25 (The average – Add the numbers together and divide by 5, which is how many numbers there are)

9. What is seven-hundredths expressed as a decimal?

0.07

10. Fred’s car holds 12 gallons of petrol. On one full tank of petrol he drove four trips to London and back. London is 45 miles from his house. How many miles to the gallon did Fred get from his car?

30

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