Find the unit place digit of (272)^51.
Find the wrong number in the sequence:
8, 13, 21, 32, 46, 63, 83
A polygon has 11 sides. Find the number of diagonals in the polygon.
Choose the substitute for a short walk for pleasure or exercise.
The sum of three consecutive even numbers is 42. What is the middle number of the three?
Express each of the following as a decimal:
(i) 6%
(ii) 28%
Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:
Two numbers are respectively 10% and 30% more than a third number. Find the ratio of the two numbers.
In a shower, 5 cm of rain falls. The volume of water that falls on 1.5 hectares of the ground is
A, B, and C are three contestants in a 1 km race. If A can give B a start of 40 m and A can give C a start of 55 m, how many meters of start can B give to C?