Question
Sheetal rides a bike at an average speed of 40 kmph and
reaches her destination in 5 hours. Hemlata covers the same distance in 4 hrs. If Sheetal increases her average speed by 10 kmph and Hemlata increases her average speed by 10 kmph, what would be the difference in their time taken to reach destination?Solution
Sheetalâs speed= 40 km/hr. Time taken by Sheetal = 5 hrs. Distance = Speed Ă Â Time = 40 Ă 5 = 200 km. â´ Distance covered by Hemlata  = 200  km. Time taken by Hemalata = 4 hrs. â´ Hemlataâs Speed = (Distance )/Time = (200 )/4 = 50 km/hr. Sheetalâs increased speed= 50 km/hr. â´ Time taken by Sheetal = (200 )/50 = 4 hrs.  Hemlataâs increased speed = 60 km/hr. â´ Time taken by Hemlata = (200 )/60 = 31/3 hrs. = 3hrs 20 minutes. â´ Required difference = 4 hrs â 3hrs 20 minutes = 40 minutes.
Marks scored by A and B in a test are in the ratio 12:5 respectively. If B had scored 5 more marks, then marks scored by A would be 20% more than that o...
The ratio of number of boys to number of girls of a class was 2:5. If 4 girls were absent, the ratio becomes 3:7. Find total number of students in the c...
A bag contains Re 1 and 50 paise coins in the ratio 2 : 3. While the ratio of 50 paise and 25 paise is 4:5. If the total value of these coins is Rs 177....
If p: q =1:3, q: r =2:1, r: s = 1:2, s: t =3:1 and t: u =1:4 then value of (p q r/s t u)3 =?
A quantity x is directly proportional to another quantity y. When x = 56, then y = 28. When y = 45, then find the value of x.
If âAâ, âBâ and âCâ are in proportion in the given order while âAâ = 25 and âBâ = 50, then find the value of âCâ.
...The ratio of the two numbers is 5:12. 120% of the first number is equal to the 30% of the second number. Find the sum of both the numbers.
A sum of Rs. 178 needs to be divided among 60 students in a class, where each boy receives Rs. 2.5 and each girl receives Rs. 3.5. Determine the ratio o...
84 is divided into two parts in such a way that the fourth part of the first part and the fifth part of the second are in the ratio 1 : 2. The first par...
A sum of Rs. 720 is divided among X, Y and Z such that X gets Rs. 124 more than Y. Y gets Rs. 64 more than Z. Find the share of Z?Â
Relevant for Exams:
