Question 19558
Let your monthly budget be x
Then you spend 3/5 on food
so cost of food=(3/5)x
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you spend 1/4 on bus fare
so cost of bus fare=(1/4)x
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The total of these two is $34
so we get,
{{{(3/5)x+(1/4)x=34}}}
LCM
{{{(4(3)x+5(1)x)/20=34}}}
{{{12x+5x=34*20}}}
{{{17x=680}}}
x=40 dollars
Thats your monthly budget
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-Prabhat