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ATQ, Ratio of speeds of 'Aarav', 'Dev', and 'Ishaan' = 2000 : (2000 - 400) : (2000 - 600) = 10 : 8 : 7 So, ratio of speeds of Dev and Ishaan = 8 : 7 Distance covered by 'Ishaan' in the time taken by 'Dev' to cover 800 metres = 800 × (7/8) = 700 metres Total difference between 'Dev' and 'Ishaan' when 'Dev' reaches the finish line = 800 - (700 + 80) = 20 metres So, 'Dev' will beat 'Ishaan' by 20 metres.
A person travels from city A to city B at 60 km/h and returns at 40 km/h. If the total time taken for the round trip is 6 hours, find the distance betwe...
Find the value of cos 15° × cos 75° + sin 15° × sin 75°:
The ages of P, Q, and R are in the ratio 2:3:5. After 5 years, the sum of their ages will be 75 years. What are their present ages?
In the given series, what will be come in place of blanks?
Series I: 13, _ P _, 89, 145, 229, 369
Series II: 287, _ Q _, 223, 194, 167, 14...
Find the difference between the smallest number of five digits and greatest number of four digits?
In a school, Boys are 60% of total students. 50% Boys students failed. Total 55% of students in school fail. employees in the company are working for mo...
I. x ² – 10x + 21 = 0
II. y ² – 8y + 15 = 0
The diagonals of a rhombus are 16 cm and 12 cm. Find the area of the rhombus.