Math, asked by rejeenaneximcj965, 10 months ago

simplify the following ​

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Answers

Answered by aaryanbizoara16
1

Answer:

Step-by-stemmp explanation:

Answered by venkatavineela3
1

Answer:

Step-by-step explanation:

a) 7hrs25min50sec=7*60*60+25*60+50=3600*7+1500+50=25200+1500+50=

26750

8hrs20min40sec=8*3600+20*60+40=30040

26750+30040=56790sec

b) 4 years7mon17days+5years3mon25days

=(4*365+7*30+17)+(5*365+3*30+25)

=9*365+10*30+42

=3285+300+42

=3627days

c) 15hrs30min30sec-10hrs40min25sec

=15*3600+30*60+30-10*3600-40*60-25

=5*3600+20*60+5

=19205sec

d)  9yrs5mon24days-4yrs9mon13day

=9*365+5*30+24-4*365-9*30-13

=5*365-4*30+11

=1716 days

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