A drawer contains ten identical yellow socks, eight identical blue socks and four identical pink socks. Amrita picks socks from from the drawer without looking. What is the smallest number of socks she must pick to be sure that she has at least two pairs
(question continued): of matching socks? A) 5 B) 6 C) 8 D) 11 E) 13
Answer: Try applying each number starting from the smallest, you will find that with 6 socks there will always be at least 2 pairs of something as 6/2 = 3 (divides into it perfectly) and each category is perfectly divisible by 2 and there are 3 categories
VB
Related Maths 11 Plus answers
All answers ▸It takes 9 minutes to paint 1 m^2 of wood. How long would it take to paint a wooden cube with sides of 2m?
I’m confused by the difference between using f’(x) and f”(x) to find the minima and maxima of a curve
The function f is defined by f (x) = e ^(x+2), where x is any real number. Find f ^-1(x) and state its domain.
An Island on a map is measured to be 4cm across. The scale of the map is 4cm to 500m. How long is the island in km?