( 1 ) A person has certain money to buy 20 smartphones worth `5000 each. If the cost of each smartphone decreases by `1000, then find the number of smartphones he can buy.
( 2 ) A man completes 2/5 of a job in 8 days. At this rate, in how many days will he take to finish the complete job?
please answer fast please solve both questions please
Answers
Answer:
(1) 25
(2) 20
Step-by-step explanation:
[1] Person's Budget = No of items * Cost of each Item
= 20 * 5000
= 100000
Cost Decreased = 1000 each (total phones 20)
= 20000 decreased from the budget.
80000 is the cost of 20 smartphones now.
4000 is the cost of each phone
Budget Left = 20000
Total phones that can be bought = 20000 / 4000 = 5
There fore, the total number of smartphones he can now buy = 25
[2] 2/5 of job in 8 days.
1/5 job in 4 days because half of the days = Half of Job
1/5 * 5 = 5/5 (Total Job)
4 days ( 1/5 ) * 5 = Total Job
4 days * 5 = 20 days
Therefore, the total number of days needed to complete the job is 20 Days.
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