Question 35
A cashier has ₹ 620 in the denominations of two-rupee notes, ten-rupee notes and fifty-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he/she has ?
Solution
The number of notes of each denomination is equal. Let it be 'a'. Therefore -
$$2a+10a+50a=620$$
$$62a=620$$
$$a=10$$
Thus, the total number of notes that he/she has $$=3a=30$$.
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