1. Kieran the Kangaroo takes 6 seconds to make 4 jumps. How long does it take him to make 30 jumps?
A 30 seconds
B 36 seconds
C 42 seconds
D 45 seconds
E 48 seconds
1. D Kieran makes 4 jumps in 6 seconds so makes 2 jumps in 3 seconds. Therefore it will take him $(30 \div 2) \times 3$ seconds $=45$ seconds to make 30 jumps.