Question
Aman takes 36 minutes more than Sudhanshu to cover a
distance of 130 km. If Aman doubles his speed, he takes 42 minutes less than Sudhanshu to cover the same distance. To cover the distance of 195 km, how much time (in hours) will Sudhanshu take with his same speed?Solution
Solution-
For A-
Speed           1     2
Time            2     1
Difference time =36+42=78min
ATQ- 1=78
2=78×2=156min.
Sudhansu takes time =156-36=120min = 2 hours.
Speed =130/2=65km/h
Sudhanshu take time =195/65=3hours.
PA and PB are two tangents from a point P outside the circle with centre O. If A and B are points on the circle such ∠APB = 128°, then ∠OAB ...
Tangents AB and AC are drawn to a circle from a point A, such that BAC = 400. A chord CP is drawn parallel to BA. The measure of ∠ CBP is...
For what value of do the simultaneous equations 2x+3y=1, 4x+6y = λ have infinite solutions?
Ina circle with centre O, AD is a diameter and AC is a chord. B is a point on AC, such that OB = 5 cm and ∠OBA = 600 If ∠DOC = 60...
In a ∆ ABC, the bisectors of ∠ B and ∠ C meet at O. If ∠ BOC = 142°, then the measure of ∠ A is
Find the equation of the plane with intercept 3 on the y-axis and parallel to ZOX plane.
Given the sides of a triangle as 3.4 cm and 5.2 cm, what can be the length of the third side (x) in cm?
If f(0) = 3, f(1) = 5, f(3) = 21, then the unique polynomial of degree 2 or less using Newton divided difference interpolation will be:
Relevant for Exams:
