Question
A bike travels 96 km in 72 minutes. If the speed is
reduced by 12 km/h, find the time taken to cover the same distance.Solution
ATQ, Speed of the bike = (96/72) × 60 = 80 km/h New speed of the bike = 80 – 12 = 68 km/h So, required time = (96/68) × 60 = 84.7 minutes or about 1 hour and 25 minutes
Find the least 4-digit number which, when divided by 18, 30, and 45, leaves a remainder of 2 in each case.
When the digits of a two-digit number are interchanged, the new number becomes 8 less than 150% of the original number. If the sum of the digits is 7, f...
What should come in place of the question mark (?) in the following question?
3/8 × 4/7 ? = 5376
On reversing its digits, a two-digit number becomes 78 less than 180% of the original number. Also, the difference between the digits is 2 (tens digit ...
The sum of three consecutive odd natural numbers each divisible by 3 is 81. Which number is the largest number among the three numbers?
Find the highest common divisor of 1080, 2700, and 6480.
What is the greatest four-digit number that leaves remainders 1, 2 and 3 respectively when divided by 2, 3 and 4?
Find the number that needs to be subtracted from 85 and 55 such that their ratio becomes 6:3.
- There are ten numbers. The average of the first three numbers is 11, and the average of the last five numbers is 24. If the fourth and fifth numbers averag...
Find the greatest 4‑digit number which is exactly divisible by 12, 15 and 20.
Relevant for Exams:
