A large volume of water is gushing through a pipe which narrows at the outlet. At which point, A, B, C or D, will the water flow fastest? Choose from the options labelled in the figure.
What number should replace the question mark? (Three pyramids have 3 and 7, 9 and 2, 4 and 8 on the bottom row and 32, 21 and ? on top.) Answer with a natural number.
A company produces 864 white, black and red motor vehicles per week in the ratio 1 : 5 : 3. How many black cars does the company produce per week? Answer with a natural number.
In a right-angled triangle, what is the length of the hypotenuse, in centimetres, if the two shortest sides are 10 cm and 24 cm? Answer with a natural number.
A company hires a fleet of buses to transport its workforce to a conference. If 689 workers attended the conference and each bus seats 35 passengers, how many buses are required? Answer with a natural number.
In a consignment of eggs 552 were cracked, which was 12 per cent of the total consignment. How many eggs were in the consignment? Answer with a natural number.