The mean age of 30 students was calculated as 15 years. However, it was later discovered that one student's age was mistakenly entered as 15 years instead of 9 years. What is the accurate average age of the students?
Sum of ages of 30 students = 30 x 15 = 450 years Actual sum of ages of 30 students = (450 - 15 + 9) = 444 years Actual average of 30 students = (444/30) = 14.8 years
Select the option that will fill in the blank and complete the given series correctly.
100, 105, 111, 118, 126, 135, ______
In the given diagram, the circle represents 'doctors', the triangle represents "actors' and the pentagon represents 'gentlemen'. Which of the following ...
Statements:
All irons are coppers.
All coppers are aluminiums.
Conclusions:
I. Some aluminiums are irons
II. Some...
In a certain code language, '274' means 'you are fool', '137' means 'Rohan is fool', and '893' means 'Riya likes Rohan'.
Which of the following o...
Select the word pair in which the two words are related in the same way as the two words in the following word-pair.
Circle : Figure
Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is rela...
Select the number from among the given options that can replace the question mark (?) in the following series.
218, 231, 248, 267, ?
Which two signs should be interchanged to make the below equation mathematically correct?
7 – 3 + 6 × 4 ÷ 2 = 25
Find the approximate value of X in the given equation.
9318 + 719.479 – × = 8953.625
If × is coded as +, - is coded as ÷, ÷ is coded as × and + is coded as then
88 – 11 ÷ 2 × 24 = ?
