Aptitude - Simplification - Discussion

Discussion Forum : Simplification - General Questions (Q.No. 3)
3.
The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Rs. 4000. The total price of 12 chairs and 3 tables is:
Rs. 3500
Rs. 3750
Rs. 3840
Rs. 3900
Answer: Option
Explanation:

Let the cost of a chair and that of a table be Rs. x and Rs. y respectively.

Then, 10x = 4y   or   y = 5 x.
2

15x + 2y = 4000

15x + 2 x 5 x = 4000
2

20x = 4000

x = 200.

So, y = 5 x 200 = 500.
2

Hence, the cost of 12 chairs and 3 tables = 12x + 3y

    = Rs. (2400 + 1500)

    = Rs. 3900.

Discussion:
32 comments Page 2 of 4.

Nouf said:   6 years ago
10 Chair = 4Table.

=>. 2T = 5Chair,
=>15 C= 6Table,

=] 6T + 2T 4000 >>T =500.
C = 2T/5 = 200.
12 * 200+ 3 * 500 = 3900.
(1)

Kiru said:   6 years ago
Thanks @Arshad.
(1)

Vaishali said:   8 years ago
Thank you all.

Ashok kothimerla said:   9 years ago
I can't understand, please tell me a simple method.

According to me the solution.

One table =250.
One chair=200.

Then,

12c * 200 = 2400 3t * 250=750.

Total =3150 not 3900.

Niveditha said:   8 years ago
10chairs=4tables.

Given that ( 15chairs+2tables=4000).
so (6tables+2tables=4000) we got 6 tables here because 4T=10C so 15C=6T
8tables =4000.
1 table =500.
now chairs.
10chairs=4tables hence (4*500=2000).
10chairs=2000.
1chair=200.
now 12chairs+3tables=12*200+3*500=2400+1500=3900.

Alka said:   6 years ago
Thanks for the simplest solution @Rashmi.

Hemanth said:   5 years ago
How 5/2 x came? Please explain it.

Rupali said:   5 years ago
How 5/2 x came? Please explain it.

Shanthini said:   8 years ago
Anyone say how 1500 will come?

Mir mushtaq said:   9 years ago
According to me,
Solution :
One tab = 250.
One chair = 200
Then
12c * 200 = 2400
3t * 250 = 750
Total = 3150 not 3900.


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