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Let the distance to be travelled be ‘x’ km Time taken when speed is 20 km/hr = (x/20) hours Time taken when speed is 30 km/hr = (x/30) hours According to the question, (x/20) – (x/30) = 2 Or, 3x – 2x = 2 × 60 Or, x = 120 km Time taken to travel 120 km with speed of 20 km/hr = 120/20 = 6 hours Therefore, he started at 12 – 6 = 6 a.m. Therefore, required speed to reach the destination at 11 a.m. or 5 hours = 120/5 = 24 km/hr
If 'N' is the greatest three-digit number which when divided by 27, 6, 8 and 9 Leaves in each case the same remainder of 5, then the sum of the digits o...
The difference between two numbers is 3820. When a larger number is divided by a smaller number, the quotient and remainder are 32 and 7 respectively. F...
Find the greatest number of four digits which is divisible by 14, 30 and 42.
If a number 'a' is divisible by 18 and another number 'b' is divisible by 12, then (a2 – b2) is divisible by:
What will be the remainder when 742 is divided by 48?
A number n when divided by 6, leaves a remainder 3. What will be the remainder when (n2 + 5n + 8) is divided by 6?
If 45780x52 is divisible by 72, then find the sum of all possible values of 'x'.
The largest 5 digit number which is exactly divisible by ‘33’ is:
A six-digit number 11p9q4 is divisible by 24. Then the greatest possible value for (p + q) is
When a number is divided by 8, the remainder is half of the divisor and the quotient is 3 more than twice the product of the divisor and remainder. Find...
