Question

If the person takes 3 hours to complete 5 dresses, how many dresses are made per hour?

Give your answer in terms of mixed fraction.

Answer 1

Step-by-step explanation:

Prakash can complete a piece of work in 24 days and Praveen can complete the same piece of work in 36 days. If Prakash and Praveen work together, how long would they take to complete the work?

a) 14.4 days b) 15.5 days c) 12 days d) 20 days

Answer : a) 14.4 days

Solution :

Prakash can complete in one day = 1/24 of work.

Praveen can complete in one day = 1/36 of work.

Prakash and Praveen can complete in one day = 1/24 + 1/36 of work.

= 3 + 2 / 72

= 5/72

Both can complete the work in 72/5 days.i.e., 14.4 days

Usually we will solve these type of problems in the above method.There is another alternate method to solve these type of problems.

i.e., we can solve by using LCM method instead of fraction method.

Answer 2

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