Question
The speeds of 'Pawan' and 'Qureshi' are in the ratio of
8:5. If the total time they take to individually cover 400 km each sums up to 65 hours, what is the difference in the time taken by them to travel the same distance?Solution
ATQ, Let the speeds of ‘Pawan’ and ‘Qureshi’ be 8x km/hr and 5x km/hr, respectively ATQ, (400/8x) + (400/5x) = 65 Or, 65x = 50 + 80 Or, 65x = 130 Or, x = 2 Therefore, speed of ‘Pawan’ = 8x = 16 km/hr Speed of ‘Qureshi’ = 5x = 10 km/hr Required difference = (400/10) – (400/16) = 40 – 25 = 15 hours
Social stratification is
Acid equivalent of Ammonium Chloride is:
Blind hoeing is a kind of :
Cyclamate is how many times sweeter than sucrose
Which of the following sprayers works on the same principle as the rocker sprayer?
The scientific study of diseases in plants, identification of the pathogen and their management is known as
Chemical preservative is defined as a chemical compound that:
Which of the following statement in not true about CAM plants
Sunhemp should be planted at what distance (in cm) to raise fibre crop?
Seeds which cannot be successfully stored for long periods are known as