Aptitude - Chain Rule - Discussion

Discussion Forum : Chain Rule - General Questions (Q.No. 7)
7.
If a quarter kg of potato costs 60 paise, how many paise will 200 gm cost?
48 paise
54 paise
56 paise
72 paise
Answer: Option
Explanation:

Let the required weight be x kg.

Less weight, Less cost (Direct Proportion)

250 : 200 :: 60 : x       250 x x = (200 x 60)

x= (200 x 60)
250

x = 48.

Discussion:
15 comments Page 1 of 2.

Man said:   1 decade ago
How did 250 come ?

Hairsh said:   1 decade ago
Quarter kg = 1/4 of 1kg=1/4*1000g=250g.

Mini said:   1 decade ago
Lets do it in a simple way;-

As we all knw quater means 250gm
Now 250gm potato= 60 paise
:. 1 gm of potato=60/250= 6/25 paise

so 200gm of potato= 200*6/25= 48 paise
(2)

Sudheer said:   1 decade ago
Super mini thanks.

Sindhu said:   1 decade ago
For 1/4 kg = 60ps.

For 1kg = 240ps, (for 1000gms = 240ps).

For 200gms = 240/5 = 48ps (5 b/c 1000/5 =200).

Arun said:   1 decade ago
For 1 kg, (250*4) = 60*4 paise.

1 kg is 5 times 200gm.

So for 200 (60*4)/5 = 48.

Sukh said:   1 decade ago
How we know to find direct proportion?
(1)

KRISH said:   1 decade ago
How we know to find direct proportion?

Buddhika said:   1 decade ago
60/250*200 = 48.
250 = 1/4 quarter.

Vijay said:   9 years ago
(200g/250g) * 60p = 48paise.


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