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logic & maths
7 Answers
1)What's unique about the number 2?
2)Ditloid
4 L F
3)This was taken from an o level maths paper in 1957 ( 12 pennies = 1 shilling & 20 shillings = 1 pound) The cost of electricity used when 40 100 watt lamps are switched on for 12 hours is 4 shillings & 6 pence. Calculate the cost when 32 100 watt lamps are switched on for 20 hours.
Thanks for any help
2)Ditloid
4 L F
3)This was taken from an o level maths paper in 1957 ( 12 pennies = 1 shilling & 20 shillings = 1 pound) The cost of electricity used when 40 100 watt lamps are switched on for 12 hours is 4 shillings & 6 pence. Calculate the cost when 32 100 watt lamps are switched on for 20 hours.
Thanks for any help
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