Question
Which country recently became the newest member of the
European Union?Solution
Ukraine became the newest member of the European Union.
Determine the mean of the following observations:
24, 26, 22, 25, 20, 21, 24, 25If log₃(2x + 3) = 2 + log₃(x – 1), find x.
A person has a total of ₹5000 in the form of ₹10 and ₹5 notes. If the number of ₹10 notes is twice the number of ₹5 notes, how many notes of e...
From a group of 7 men and 4 women, a committee of 4 persons is to be formed. The probability that the committee has at least one woman is:
The average of a, b and c is 8 less than d. If the average of a, b, c and d is 42, and the average of b and c is 43. then find the average of (a-6) and ...
Rs. 156 is to be shared among 40 students, if each girl receives Rs.4.50, and boy receive Rs.3.50. Find the ratio of number of boys and girls.
Find the reciprocal of the complex number z = 9 – 4i.
A man invested a certain amount of sum at 12.5% per annum simple interest and earned an interest of Rs.3000 after 5 years. If the same amount is investe...
From the top of a tower 60 meters high, the angle of depression of two points on the ground on opposite sides of the tower are 30° and 60°. Find the d...
25% of X = 50% of Y. If 40% of Y =120, calculate 75% of X.
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