Mr Smith's Altitude Blog

Week Thirteen: 26. Climbing Snail

mrmarksmith — Sun, 26 Jul 2009 10:57:51 +0000

A snail is climbing a brick wall which is 15 m high. It climbs up 3 m every day but slides down 1 m every night. How long will it take to reach the top?

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Week Thirteen: 25. Weekly Milk

mrmarksmith — Sun, 26 Jul 2009 10:54:48 +0000

A cafe uses 27.5 litres of milk a day. If they have a weekly delivery of 180 litres, how much will they have left after six days?

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Week Twelve: 24. Groups Of Three

mrmarksmith — Sun, 26 Jul 2009 10:45:32 +0000

On a skiing holiday, there are five people but only three pairs of skis. How many different groups of three could ski?

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Week Twelve: 23. Length Of Wall

mrmarksmith — Sun, 26 Jul 2009 10:43:53 +0000

When Ivan subtracts the width of his cupboard from the length of his bedroom wall, he finds he has 3.65 m of wall space left. If the cupboard is 0.87 m wide, what is the length of his bedroom wall?

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Week Eleven: 22. Cars And People

mrmarksmith — Sun, 26 Jul 2009 10:17:52 +0000

At a conference, one car was provided for every 4 people.

a) If there were 17 cars, how many people were there?

b) If there were 76 people, how many cars were needed?

c) If there were 91 people, how many cars were needed?

Week Eleven: 21. Marking Time

mrmarksmith — Sun, 26 Jul 2009 10:14:55 +0000

A teacher spends 5.75 minutes marking each story. How long would it take to mark 8 stories?

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Week Ten: 20. Beginning Number

mrmarksmith — Sun, 26 Jul 2009 08:52:20 +0000

Jan doubled her starting number, added 5, subtracted 7, divided by 3 then squared the result. If her final answer was 36, with which number did she begin.

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Week Ten: 19. Height Of David

mrmarksmith — Sun, 26 Jul 2009 08:49:39 +0000

If David were 7.5cm taller, he would be twice as tall as Ian. Ian is 74.25 cm tall, so how tall is David?

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Week Nine: 18. Mystery Numbers

mrmarksmith — Sun, 26 Jul 2009 08:30:41 +0000

Two numbers have a sum of 31 and a product of 228. What are the numbers?

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Week Nine: 17. Original Money

mrmarksmith — Sun, 26 Jul 2009 08:28:27 +0000

Sophie buys her mother a bunch of flowers for $12.95 and her brothers some sweets for $2.76. If she has $7.83 left, how much did she start with?

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