Question
In how many ways Barcelona’s football team captain
and vice-captain be elected from a team of 15 men?Solution
To do this, if captain is selected first, then we have 15 ways of doing this. For election of vice-captain, we have 14 ways left, because 1 way is already consumed. So, the required answer = 14 × 15 = 210
Which of the following pairs of non-zero values of p and q make 6-digit number 674pq0 divisible by both 3 and 11?
If the 6-digit number 589y72 is completely divisible by 8, then the smallest integer in place of y will be:
Find the greatest value of (a + b) such that an 8-digit number 4523a60b is divisible by 15.
A number when divided by 45 leaves a remainder 21. What will be the remainder when the square of the same number is divided by 45?
If the seven-digit number 5728p9 is exactly divisible by 11, then what is the value of (11 p), where p > 0?
On dividing a certain number by 304, we get 43 as the remainder. If the same number is divided by 16, what will be the remainder?
If ‘48b297a54’ is a nine digit number which is divisible by ‘11’, then find the smallest value of (a + b).
Which of the following pairs of non-zero values of p and q make 6-digit number 674pq0 divisible by both 3 and 11?
Which of the following numbers is divisible by 11?
If the 6-digit number 1344AB is divisible by 3, 7, and 11, then what is the value of A + B?
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