Question
A motorist is traveling at 72 km/h and expects to
complete his journey in 1.25 hours. After reaching halfway, he halts for 15 minutes. What should be his speed for the remaining part?Solution
Total distance = 72 × 1.25 = 90 km
Time for half = (45 ÷ 72) × 60 = 37.5 minutes
Time left = 75 – 37.5 – 15 = 22.5 minutes
Required speed = (45 ÷ 22.5) × 60 = 120 km/h
- A number is 2/5 more than 33 times its reciprocal. What is the number?
 If (3/4)th of a number is subtracted from (5/6)th of that number, then the resultant will be (2/6). Find the number.
- The product of two consecutive even integers is 960. Find the product of digits of the bigger number.
- A number gives a remainder of 14 when divided by 29. What will be the remainder when six times that number is divided by 29?
The remainder obtained when (47³ + 35³) is divided by 41 isÂ
A person had to multiply two numbers. Instead of multiplying by 46, the person multiplied by 64, and the product went up by 360. What is the raised pro...
- A two-digit number has digits summing up to 10. On subtracting 36 from the number, the digits get interchanged. What is the original number?
- Find the greatest common divisor (GCD) of (x 2 Â - 9x + 14) and (x 2 Â + x - 56).Â
Total of Series of n terms 1 + 1 + 3 + 1 + 3 + 5 + 1 + 3 + 5 + 7 ……………………
What is the highest possible sum of (x + y) if the number '7x542y6' is divisible by 12?