BA LLB Banaras Hindu University 2017 Solved Paper

Question : 99 of 170

Marks: +1, -0

A person has only

z 1

and इ 2 coins with her. If the total number of coins that she has is 50 and the amount of money with her is 775, then the number of coins are, respectively

15 and 35
35 and 15
30 and 20
25 and 25

Validate

Solution:

Total number of coins

=50

Let, ₹ 1 coins

=x

and ₹ 2 coin

=y

So,

x+y=50

...(i)
and

x+2 y=75

.....(ii)
On solving Eqs. (i) and (ii), we get

x=25

and

y=25

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