Verbal Reasoning - Arithmetic Reasoning - Discussion
Discussion Forum : Arithmetic Reasoning - Section 1 (Q.No. 9)
9.
A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has ?
Answer: Option
Explanation:
Let number of notes of each denomination be x.
Then, x + 5x + 10x = 480 
16x = 480 x = 30.
Hence, total number of notes = 3x = 90.
Discussion:
9 comments Page 1 of 1.
M.Malik said:
3 years ago
As we know 3 notes are equal in parts. So, the clue is they must be even numbers.
Now just check the options where we have even numbers; that are 60 and 90.
Divide 60 in 3 parts (20, 20, 20) now multiply them by 1, 5, 10.
(20*1 + 20*5 + 20*10) = 320.
Now for 90.
30*1 + 30*5 + 30*10 = 480.
So, it is the correct answer.
Now just check the options where we have even numbers; that are 60 and 90.
Divide 60 in 3 parts (20, 20, 20) now multiply them by 1, 5, 10.
(20*1 + 20*5 + 20*10) = 320.
Now for 90.
30*1 + 30*5 + 30*10 = 480.
So, it is the correct answer.
(3)
Akash said:
8 years ago
10*40=400 10 rupe*40.
5*15=75,
1*5=5.
So total 60 notes we need how 90?
5*15=75,
1*5=5.
So total 60 notes we need how 90?
(2)
Rajendra prashad said:
9 years ago
Denominations means different value of notes like one rupee note, five rupee note, twenty rupee note.
Raju said:
9 years ago
Nice method @Aaushi.
Naveen Bajjuri said:
9 years ago
Total Rs. 480.
1 : 5 : 10.
480/16 = 30.
That means one rupee 30 notes = Rs. 30.
5 rupees 30 notes = 150.
10 rupees 30 notes = 300.
Total = Rs. 480.
1 : 5 : 10.
480/16 = 30.
That means one rupee 30 notes = Rs. 30.
5 rupees 30 notes = 150.
10 rupees 30 notes = 300.
Total = Rs. 480.
(5)
Aaushi said:
9 years ago
You can also solve it as 1(one rupee note ) + 5(rupee note ) +10( rupee note ) =16.
Then 480/16 = 30. Since all notes have an equal number so 30 each note, then total will be 30 * 3 = 90.
Then 480/16 = 30. Since all notes have an equal number so 30 each note, then total will be 30 * 3 = 90.
(2)
Imran Ali said:
1 decade ago
DENOMINATION MEANS NUMBER OF NOTE, in q question number of notes are equal, that's why we multiplied x with 3, means we have 90 notes, whom 30 of 1 rupees, 30 of 5 rupee, 30 of 10 rupee.
SnehaRavi said:
1 decade ago
Because the man has 3 notes (1, 5, 10 rupee respectively).
Manish said:
1 decade ago
Why it is multiplied by 3?
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