A sum of money lent out at simple interest amounts of Rs.720 after 2 years and to Rs.1020 after a further period of 5 years. Find the principal.

 a) 600
 b) 1740
 c) 120
 d) 6000
SSC CGL-2015

600.

Solution
Principal + SI for 2 years = Rs. 720 …..(i)
Principal + SI for 7 years = Rs. 1020 ….(ii)
Subtracting equation (i) from (ii) we get,
SI for 5 years
= Rs. (1020 -720) = Rs. 300
SI for 2 years = 300× 2/5 = 120
Principal = Rs. 720- Rs. 120 = 600
Share :
+
Next
« Prev
Prev
Next »
0 Comments

GK Cards

 
Back To Top