CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Ammu was creating a floral rangoli for Onam. It took her 2 hours to finish it. If two of her cousins joined her to create another rangoli identical to the first, how much time will be required to complete it?


A
30 minutes
loader
B
20 minutes
loader
C
45 minutes
loader
D
40 minutes
loader

Solution

The correct option is D 40 minutes
If more people work together, the completion of the rangoli will take less time.

This is a case of inverse proportion.
Ammu took 2 hours = 120 minutes to finish the rangoli.
Since two of her cousins joined her, now there are 3 people working on it.
Using the formula for inverse proportion,
Number of people × Time required = constant
 1 × 120 = 3 × Time required
 Time required = 1 × 1203 = 40 minutes.

Mathematics

Suggest Corrections
thumbs-up
 
0


similar_icon
Similar questions
View More


similar_icon
People also searched for
View More



footer-image