a monthly fee of a student consists of a constant part and a part which varies according to the number of activity clubs he wishes to join. the fee for all activity clubs is the same. a student has to pay rs. 1,075 per month, if he enrolls in three activity clubs and rs. 950 per month, if he enrolls in two activity clubs. the total monthly bill of three students who are enrolled in four activity clubs each is
Answers
Given : a monthly fee of a student consists of a constant part and a part which varies according to the number of activity clubs
the fee for all activity clubs is the same. a student has to pay
rs. 1,075 per month, if he enrolls in three activity clubs and
rs. 950 per month, if he enrolls in two activity clubs.
To Find : the total monthly bill of three students who are enrolled in four activity clubs each
Solution:
Let say constant part of fee = A Rs
Variable part per activity club = B Rs
a student has to pay rs. 1,075 per month, if he enrolls in three activity clubs
=> A + 3B = 1075
a student has to pay rs. 950 per month, if he enrolls in two activity clubs.
=> A + 2B = 950
=> B = 125
=> A = 700
enrolled in four activity clubs => A + 4B
= 700 + 4(125)
= 700 + 500
= 1200
total monthly bill of three students who are enrolled in four activity clubs each is = 3 * 1200
= 3600 Rs
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