Question

if 15 workers can build a wall in 48 hours, how many workers will be required to do the same work in 30 hours?​



please answer fast​

Answer 1

Answer:

The given situation is inverse proportion

48 ----- > 15

30 ------> ?

48 × 15

----------

30

= 24 workers

Answer 2

See First we need to find what time does workers take in 1 hours so,

$48 \div 15 = 3.5$

Next as we know now worker takes 3.5 hours to make a wall so in 30 hours how walls will built for this we will do same

$30 \div 3.5 = 8.57$

Therefore

$8.57 \: walls \: can \: be \: made \: in \: 30 \: hours$