Answers

2015-08-18T18:32:08+05:30
Sana and Sara together have Rs . 700
Let the money at Sana be 'x'
Now , the money at Sara is three times of Sana's money 
3×x = 3x
Now , 3x+x=Rs.700
4x = Rs.700
x = Rs.700/4
x = Rs.175.
Therefore , 
             the money at Sana (x) = Rs.175
             the money at Sara (3x) = Rs.3
×175 = Rs.525 .
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2015-08-18T18:54:01+05:30
Let sana's money be `a'
then sara's money = 3a

total money = a + 3a = 700
                           4a = 700
                             a = 700/4
                             a = 175
sana's money = a = rs175
sara's money  = 3a = 3×175 = 525
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