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Browse complete papersTwo taps can fill a cistern in 3 hours and 49 hours, respectively. A third tap can empty the filled cistern in 49 hours. How long (in hours) will it take to fill two-third of the empty cistern if all of them are opened together?
8
6
2
4
Correct answer
8
Median of the data 8, 4, 2, 1, 5, 3, 2, 1, 4, 2, 8, 1, 2, 9, 0, 4, 5, 4, 6, 7, 11, 3, 13, −1 is _______.
3
3.5
4
4.5
Correct answer
3
Read the given statement(s) and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statement(s).
Statements:
Some buckets are pictures.
Some pictures are chairs.
Conclusions:
(I): Some buckets are chairs.
(II): All chairs are pictures.
Neither conclusion (I) nor (II) follows
Both conclusions (I) and (II) follow
Only conclusion (II) follows
Only conclusion (I) follows
Correct answer
Neither conclusion (I) nor (II) follows
E, F, G, H, M, N, O and P are sitting around a square table, facing the centre of the table. Some of them are sitting at the corners while some are sitting at the exact centre of the sides.
N sits second to the right of G. Only three people sit between F and M. F is an immediate neighbour of G. Only three people sit between G and H when counted from the left of G. G sits at one of the corners. O sits to the immediate right of N. P is not an immediate neighbour of M.
How many people sit between E and O when counted from the left of O?
One
Four
Three
Two
Correct answer
One
What will come in place of the question mark (?) in the following equation if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
\( 123 \div 4 - 4277 \times 7 + 54 = ? \)
1023
1140
1049
1103
Correct answer
1023
10 chairs and 5 tables cost ₹2400 and 16 chairs and 6 tables cost ₹3200. What is the cost of 5 chairs and 7 tables?
₹2640
₹2642
₹2637
₹2638
Correct answer
₹2640
An article is currently priced at ₹11,875. Its price increases by 10% in the first year and by 44% in the second year, but then decreases by 30% in the third year. What will be the price of the article at the end of the third year?
13168
13167
13166
13162
Correct answer
13168
The marks of 9 students are:
18, 22, 25, 28, 30, 35, 38, 40, 45.
If the marks of the students who scored 45 are replaced by 50, find the new median.
30
28
25
29
Correct answer
30
The probability of an event A occurring is 0.6 and that of B occurring is 0.3. If A and B are mutually exclusive events, then the probability of neither A nor B occurring is:
0.45
0.2
0.9
0.1
Correct answer
0.45
A shirt is listed at ₹192 with a discount of 25%. What additional percentage discount must be offered to the customer to bring the net price to ₹108?
30%
23%
25%
27%
Correct answer
30%