Question
15 male employees or 20 female employees of a company
can complete a project in 26 days. How long will 30 male employees and 12 female employees together take to complete the project?Solution
15 males × 26 days = 20 females × 26 days ∵ 15 males = 20 females ∴ 30 males = 40 females Total work in terms of females = 20 females × 26 days = 520 units No of days taken by 30 males and 12 females: ⇒ (40 females + 12 females) = 52 females ∴ No of days taken = 520 units /52 females = 10 days
The smallest natural number that must be added to 1212 to make it a perfect square is:
Find the unit digit of (62375Â - 7)
Find the number of zeros at the end of the following expression:
12 × 16 × 25 × 40 × 45
When a number is increased by 20% then the number obtained is 72 less than thrice the original number. Find the original number.
Product of two consecutive positive even numbers is 840. Find the sum of the digits of the two numbers. Â
The number of pencils with ‘Ravi’ and ‘Shyam’ together is 30 more than that with ‘Karan’, while the number of pencils with ‘Shyam’ and �...
If the 6-digit number '5a1897' is divisible by '11', determine the value of 'a'.
Product of two consecutive positive even numbers is 440. Find the sum of the digits of the two numbers.Â
- Find the least 5-digit number which leaves no remainder when divided by 22, 33, 44 and 66.
