Mathematics Test 188

Result

Mathematics Test 188

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Weekly Quiz Competition

Question 1
4 / -1

Let A, B, C be finite sets. Suppose that n (A) = 10, n (B) = 15, n (C) = 20, n

A
26

B
27

C
28

D
Any of the three values 26, 27, 28 is possible

Solution
Question 2
4 / -1

is

A

B

C

D

Solution
Question 3
4 / -1

A
0

B
1

C
-1

D
½

Solution
Question 4
4 / -1

A
2

B
3

C
7

D
1

Solution
Question 5
4 / -1

A

B

C

D

Solution
Question 6
4 / -1

The pairs of consecutive even positive integers, both of which are larger than 5 such that their sum is less than 23, are

A
(4, 6), (6, 8), (8, 10), (10, 12)

B
(6, 8), (8, 10), (10, 12)

C
(6, 8), (8, 10), (10, 12), (12, 14)

D
(8, 10), (10, 12)

Solution
Question 7
4 / -1

The number of values of r satisfying the equation

A
1

B
2

C
3

D
4

Solution
Question 8
4 / -1

A

B

C

D
None of these

Solution
Question 9
4 / -1

The value of x + y + z is 15 if a, x, y, z, b are in A.P. while the value of if a, x, y, z, b are in H.P. Then the value of a and b are

A
2 and 8

B
1 and 9

C
3 and 7

D
None of these

Solution
Question 10
4 / -1

The equation of a straight line, which passes through the point (a, 0) and whose perpendicular distance from the point (2a, 2a) is a, is

A

B

C
both (a) and (b)

D
Neither of (a) and (b)

Solution