Question
A train takes 5 seconds more to cross a 180-metre-long
platform than it takes to cross a pole. If a car running at the speed of 42 m/s takes 80 seconds to completely overtake the train, then find the length of the train.Solution
ATQ, The extra 5 seconds is taken by train to cross the platform, therefore Speed of the train = 180 ÷ 5 = 36 m/s So, relative speed of the car with respect to the train = 42 - 36 = 6 m/s (Since, both are travelling in same direction) Therefore, length of the train = 6 × 80 = 480 metres
Statement:
Some Maths are Physics
Few Physics are not Chemistry
Only English is Chemistry
Conclusion:
I. Some C...
According to the dictionary order, which of the following word will come at third position?
1- Father
2- Forest
3- Fair
4- Faint
5- Football
6- Farther
Mr. AP, BP, CP, DP, EP, FP, GP and HP are in a meeting, sitting around a round table facing the centre. HP is sitting third to the left of EP. DP is sit...
How many dots lie opposite the face having six dots, when the given figure is folded to form a cube?
Select the number from among the given options that can replace the question mark(?) in the following series.
523, 498, 475, 454, 435, ?
Select the option that is related to the first number in the same way as the third number is related to the fourth number.
729: ? :: 432: 408
Select the related number from the given alternatives:
9 : ? :: 8 : 513
If all the digits in the number “9265387478” arranged in ascending order from left to right then how many numbers remains same in their position?
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varianc...
Statements:
All tables are chairs.
All chairs are fan.
Some fan are bulb.
Conclusion:
I. All chairs are tables.<...
Relevant for Exams:
