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Armenia has acquired or is in the process of acquiring significant Indian-made weapon systems, including the Akash air defence system, under this $2-billion defence partnership signed in 2020.
A box contains 2 blue, 3 black and 5 orange balls. In how many ways can 3 balls be drawn from the box, if at least 1 black ball is to be included in the...
How many 5-digit even numbers can be formed using the digits 0 to 9 if no digit is repeated?
Nine boys have to stand in a circle. In how many ways they are to be stand on the circumference of circle?
In how many ways Barcelona’s football team captain and vice-captain be elected from a team of 15 men?
History books are never together.
How many four digit numbers greater than 5000 can be formed with the digits 4 ,5, 7, 8, and 9?
In how ways can the selection be made so that a particular member is always excluded?
Out of 10 men, 3 are wearing red caps, 4 are wearing green caps, and the remaining men are wearing orange caps. They are to be seated in a linear row. I...
How many different nine digit numbers can be formed from the number 66 55 99 222 by rearranging its digits so that the odd digits occupy even positions...
In how many ways can 7 boys and 2 girls can be seated in a row so that they are in alternate position.
