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Browse complete papersGiven the ratio of the perimeters of two squares is 7:11, find the ratio of their areas.
49:121
121:49
7:121
121:7
Correct answer
49:121
If ‘P’ stands for ‘÷’ , ‘Q’ stands for ‘×’, ‘R’ stands for ‘+’ and ‘S’ stands for '−' , then what will be come in place of question mark (?) in the following equation?
44 Q 8 S 91 P 13 R 67 = ?
412
415
421
451
Correct answer
412
Box A contains 5 red and 4 white marbles and box B contains 3 red and 6 white marbles. If a marble is drawn from each box, what is the probability that they are both of the same colour?
\( \frac{17}{27} \)
\( \frac{19}{27} \)
\( \frac{11}{27} \)
\( \frac{13}{27} \)
Correct answer
\( \frac{17}{27} \)
The mode and median of a data are 13.8 and 64, respectively. What is the mean of the data? (Use empirical formula.)
89.1
92.1
93.3
80.4
Correct answer
89.1
To complete a project, 12 men work for 10 days, working 9 hours per day. How many hours per day should 16 men work to finish the project in 5 days?
12.5
10.5
11.5
13.5
Correct answer
12.5
Kavita, Rakesh, and Shalini invested in a business in the ratio 5:8:15. They invested their capitals for 8 months, 7 months and 4 months, respectively. What was the ratio of their profits?
13:14:15
12:14:15
11:14:15
10:14:15
Correct answer
13:14:15
The median of the following data is 350.
| Class Interval | Frequency |
|---|---|
| 0 - 100 | 4 |
| 100 - 200 | 6 |
| 200 - 300 | x |
| 300 - 400 | 10 |
| 400 - 500 | y |
| 500 - 600 | 8 |
What are the values of x and y if the total frequency is 40?
x = 3, y = 9
x = 8, y = 4
x = 6, y = 6
x = 5, y = 7
Correct answer
x = 3, y = 9
At a health club, 55% of the members are women and 45% of the members are men. If the average age of the men is 50 years and the average age of the women is 40 years, what is the average age (in years) of all the members?
44.9
44.5
43.6
43.8
Correct answer
44.9
The marks scored by 10 students are given below.
16, 13, 20, 18, 16, 14, 18, 11, 10, 16
The mode of the data is:
16
13
20
18
Correct answer
16
Each of the digits in the number 3187569 is arranged in ascending order from left to right. What will be the sum of the digits which are first from the left and first from the right in the new number thus formed?
10
12
11
8
Correct answer
10