Chain Rule - Quantitative Aptitude (MCQ) questions for Q. 20939

Q.  If a quarter kg of onions costs 80 paise, how many paise will 100 gm cost?
- Published on 13 Apr 16

a. 32 paise
b. 44 paise
c. 56 paise
d. 63 paise

ANSWER: 32 paise
 
Let the required cost be x paise.
Less weight, Less cost (Direct proportion)
250 : 100 : : 80 : x
250 * x = (100 * 80)
x = (100 * 80) / 250
x = 32

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