Question

in 2 days 20 hours a watch gains 20 seconds find how much time the watch will take to gain 35 seconds

Answer 1

3 Days 13 Hours. 2 days and 20 hours turns into 68 hours.Take 20 seconds subtract that by 35 seconds. You get 15. 15 is 3/4 of 20. to figure out the other 1/4 you take 68 and multiply that by 1/4 or 0.25. and you get 85 hours or 3 days and 13 hours.

Answer 2

→ Chapter : Ratio ←
≡ We know that:
⇔ 2 days 20 hours = 68 hours → Gain 20 seconds
⇔ N → Gain 35 seconds

≡ Solution:
⇒ $\frac{68}{N}=\frac{20}{35}$
⇒ $N=\frac{(68).(35)}{20}$
⇒ $N=\boxed{119}Hours=\boxed{4}Days\boxed{23}Hours$