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TSD Distance Constant - 3
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distance constant part - 3

Bharat Gupta is teaching live on Unacademy Plus

Bharat Gupta
Engineer by degree Mathematician by Heart. Having 22 years of teaching experience. Visit my youtube channel BHARAT GUPTA-RADIX .

U
Unacademy user
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sir aise question ko ratip sae bi ban jata
Bharat Gupta
10 months ago
Yes ratio se bhi hota hain
sir in this class the second last question says that x(x+10)is the higher value of another side which is 30 and in you next video the higher value of will denoted x=600 ..can you please explain why we take higher value some time x or some times x+30 ..I m confused about that ..
Anil Mandia
6 months ago
600 km was the radius not higher value the multiplication of 20*30 gives this value difference is 10.
sir in the last question (11: 09) after getting distance as 24 km , can we solve like by assuming that increase in speed should be x km/ h and then applying formula and forming a equation [ 24= 10(10+x) /10 x (24/60 )
Bhaskar Mandal
a year ago
it will be 24 = [ {(10+x)*10 / {(10+x)-10} * (24/60) => x = 2 so speed = 10+x = 12
sir at 9.16 sec u have multiplied by 5/18 to convert km/hr to m/s i think it should be multiplied by 18/5
i could have joined ur cat course..ur completly owsme..unfortunately joined nilajan dutta ...
  1. TIME, SPEED AND DISTANCE Distance constant - 3


  2. Too early too late If a boy walks from his house to school at the rate of s1 km per hour, he reaches the school ty minutes earlier than the scheduled time. However, if he walks at the rate of s2 km per hour, he reaches t2 minutes late. 23 6D


  3. Too early too late SD Too early-early or too late-late Go


  4. Application of Too early too late formula If a boy walks from his house to school at the rate of 4 km per hour, he reaches the school 10 minutes earlier than the scheduled time. However, if he walks at the rate of 3 km per hour, he reaches 10 minutes late. Find the distance of his school from his house. a. 5 km b. 4 km c. 6 km d. 4.5 km


  5. Application of Too early too late formula If a boy walks from his house to school at the rate of 4 km per hour, he reaches the school 10 minutes earlier than the scheduled time. However, if he walks at the rate of 3 km per hour, he reaches 10 minutes late. Find the distance of his school from his house. a. 5 km b. 4 km c. 6 km d. 4.5 km Go 60


  6. A student walks from his house at 4 km/hr and reaches his school 5 min too late. If his speed had been 5 km/hr, he would have reached 10 min too early. The distance of the school from his house is a. km 5 dkm 27 c. 5 km 3 9


  7. A student walks from his house at 4 km/hr and reaches his school 5 min too late. If his speed had been 5 km/hr, he would have reached 10 min too early. The distance of the school from his house is a. km 5 27 c. 5 km 3 9 6 GS - Sewm


  8. Hari walks from his home at 5 km/hr and reaches his office 10 minutes late. The next day he increases his speed by 1 km per/hour and reaches 4 minutes late. The distance of his office from his home is- a. 1 km b. 2 km c. 3 km d. 2.5 km


  9. Hari walks from his home at 5 km/hr and reaches his office 10 minutes late. The next day he increases his speed by 1 km per/hour and reaches 4 minutes late. The distance of his office from his home is- a. 1 km b. 2 km c. 3 km d. 2.5 km da (Ant) 6-S 1o


  10. With a uniform speed a car covers a distance of 600 km. If it had moved 10 kmph faster, it would have taken 10 hrs less. What is the speed of the car (in m/ sec)? a. 70 100 18 18 2 b. C. d. 100 9