Ques:- A person has Rs 100/- in his pocket, he can as 25 pencils or 15books.He kept 15% of the money for travelling expenses and purchased 5 pencils.So how many books he can purchase with the remaining money.
A. 4
B. 3
C. 5
D. none
25 pencils = 100 , so each pencil is Rs 4/-
15 books = 100, so each book is 100/15
Now, he has kept aside 15%, that is 15 Rs
So, remaining is (5*4) + X * (100/15) + 15 = 100
X * (100/15) = 100 – 15 -20, so,
X = 65 * 15 / 100 = 39/4 ~ 9
So, answer is none.
he has rs100
rs 100 buys 25 pencils @ rs 4 each
rs 100 buys 15 books @ rs 6.66 each
rs 100
-15 = he keeps 15%
-20 = he buys 5 pencils
——
rs 65
65 / 6.66 per book = 9 books = 59.94
he buys 9 books and has rs 5.06 change
4
None
each pencil 100/25 = 4
each book 100/15 = 6.66
100 – 15 = 85
85-5*4 = 65
65/6.66 = 9
he can buy 9 books that is not in given options currently so
answer is NONE