Question
What is the main ore of
aluminum?Solution
Bauxite is the primary ore of aluminum, consisting mainly of hydrated alumina.
N is the largest two digit number, which when divided by 3, 4 and 6 leaves the remainder 1, 2 and 4 respectively. What is the remainder when N is divid...
Sum of first 20 odd natural numbers is (10m + 200), whereas sum of first 24 even natural numbers is (10n + 200). 'p' is the number of factors of (mn - 3...
- The sum of two numbers is 80 whereas the sum of their reciprocals is (22/11). Find the square of the product of the two numbers.
How many numbers between 340 and 1260 are divisible by both 18 and 24, but are not divisible by 5?
- The expression 12x - x² - 20 is positive between which values of x?
- The sum of the digits of a two-digit number is 7. If 45 is subtracted from this number, the digits reverse their positions. What is the original number?
The sum of the digits of a two-digit number is 9. If 27 is subtracted from the number, its digits switch their places. What is the number?
Manas ordered 6 Levis jeans and some additional Blackberry jeans. The price of one Levis jeans was twice that of one Blackberry jeans. When the order wa...
The sum of two numbers is 30 while the difference between these two numbers is 6. What is 50% of the product of the two numbers?
- The average of five consecutive even numbers is 20. Find the second largest number.
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