Math, asked by aru1195, 3 months ago

what is the cost of 4 pen if 5 pen costs Rs 100

gitobithee: I can't do this sum

gitobithee: please mark me as the brainlist

kuldeepkaurlko351: 50/100 = 1/2

aru1195: thank you so much

aru1195: 8 Men completes a work in 10 days. how long will 10 men will take to complete the same work

aru1195: this answer too?

kuldeepkaurlko351: if 8 men complete a work in 10 days, then 10 men will complete the same work in X days,( 8 = 10) equation 1, (10 = x )

kuldeepkaurlko351: so, 8 × 10 = 10 ×X, 80 = 10X , X = 80/10 = 8 days

aru1195: oh thank you so much

kuldeepkaurlko351: welcome

Answers

Answered by gitobithee

Answer:

Step-by-step explanation:

5×20=100

so 4×20=80

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