# Math Ch-1 Mock Test

10 Questions | Total Attempts: 23  Settings Create your own Quiz • 1.
The values of x and y in the given figure are:
• A.

X = 10; y = 14

• B.

X = 21; y = 84

• C.

X = 21; y = 25

• D.

Terminating after two places of decimal

• 2.
For any positive integer a and 3, there exist unique integers q and r such that a = 3q + r, where r must satisfy :
• A.

0 ≤ r < 3

• B.

1 < r < 3

• C.

0 < r < 3

• D.

Terminating after two places of decimal

• 3.
The HCF and LCM of two numbers are 33 and 264 respectively. When the first number is completely divided by 2 the quotient is 33. The other number is:
• A.

66

• B.

130

• C.

132

• D.

196

• 4.
What will be the least possible number of the planks, if three pieces of timber 42 m, 49 m and 63 m long have to be divided into planks of the same length?
• A.

5

• B.

6

• C.

7

• D.

Terminating after two places of decimal

• 5.
The decimal expansion of the rational number will terminate after
• A.

2

• B.

1

• C.

3

• D.

4

• 6.
1. The decimal expansion of number has:
• A.

A terminating decimal

• B.

Non-terminating but repeating

• C.

Non-terminating non repeating

• D.

Terminating after two places of decimal

• 7.
L.C.M. of 23 × 32 and 22 × 33 is :
• A.

23

• B.

33

• C.

23 x 33

• D.

22 x 32

• 8.
If A = 2n + 13, B = n + 7, where n is a natural number then HCF of A and B is:
• A.

2

• B.

1

• C.

3

• D.

4

• 9.
The product of rational and irrational no is
• A.

Rational

• B.

Irrational

• C.

Both of above

• D.

None of above

• 10.
If two positive integers a and b are written as a = x3y2 and b = xy3; x, y are prime numbers, then HCF (a, b) is
• A.

XY

• B.

Xy2

• C.

X3y3

• D.

X2y2

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