IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => Subject Doubts => GCE AS & A2 Level => Math => Topic started by: AS-Girl on December 22, 2010, 07:48:08 pm
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hi everyone>>>
I have these questions which i couldnt solve..hope someone can help me :)
1) A shop keeper bought 50 kg of apples for 250 fils per kilo. He then discovered that 10 kg of them are damages and cannot be sold. What is the selling price of the rest of the apples if the shopkeeper wants a total profit of 2.5 KD?
By the way the currency is kuwaiti....1 KD is 1000 fils!!
options are
a)340 fils/kilo
b) 395 fils/kilo
c)375 fils/kilo
d) 350 fils/kilo
2) 25 rabbits in a farm consume 90kg of food every two days. How many kg of food would 10 rabits consume in a week?
a)119 kg
b)112 kg
c)140 kg
d)126 kg
answer is d
Thanks in advance...i really need to know the answer of these questions :)
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(1) The answer is C "375 fils/kg"
50 * 250 = 12500 which is 12.5 KD
10 Kg are damaged thus no profit would be gained from it therefore 50-10 = 40 kg
It costed the shopkeeper 12.5 KD and he needs 2.5 KD profit so 12.5+2.5 = 15
to convert it to fils 15 * 100 = 15000
there is 40 kg to be sold so 15000/40 = 375
(2) The answer is D
You use cross multipication you see how many each rabbit consume per 2 days then you multiply it by 3.5
3.5 because there are 7 days a weeks therefore 7/2 = 3.5
I know my working is sooooooooooo messy thats because this is my first time I ever help someone in the internet :P
good luck o sam7eeny 3el lig9oor :)
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Thankssssss for the working out...it wasn't messy or otherwise i wouldn't have understood it ;)
y36eek alf alf alf alf 3afya.. :D
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I was going to solve, anyways, + rep - Samuel. :D
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Thankssssss for the working out...it wasn't messy or otherwise i wouldn't have understood it ;)
y36eek alf alf alf alf 3afya.. :D
Allah e3afeech we5eleech :D