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1)The ratio of cows and buffaloes is 3:4 ,the total no. of cows and buffaloes is 35.Find the no. of them.
2)A fruitseller purchased 30 kg apples for Rs.3600 and sold them at the rate of Rs.150 per kg .Find the profit or loss in %.
3)The CP of 20 eggs is equal to the SP of 16 eggs .Find the profit or loss in %.
4)Amit borrowed Rs.15000 for 2 years and Rs.10000 for 1 year bank at the same rate of interest. In addition to the principal amount he has to give an interest amount of Rs.4000.Find the rate of interest.
Ankit02:
if u want i can answer 3 of them
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Let the no. of cows be 3x
Let the no. of buffaloes be 4x
Total no. of animals is 35
So,3x+4x =35
7x=35
X=35/7
x=5
No. of cows is 3x=3X35=105
No. of buffaloes is 4x=4X35=140
Let the no. of buffaloes be 4x
Total no. of animals is 35
So,3x+4x =35
7x=35
X=35/7
x=5
No. of cows is 3x=3X35=105
No. of buffaloes is 4x=4X35=140
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