20000+ Important MCQs for TET

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Learn TET MCQs with answers [Page 2 of Department 78]

M

Mahesh Chandra • 6.28K Points
Tutor III Math

11) The HCF of two numbers is 15 and their LCM is 225. If one of the numbers is 75, then find the another number.

  • (A) 105
  • (B) 90
  • (C) 60
  • (D) 45
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Correct Answer - Option (D)

Explanation :

Let the other number = N
Product of LCM and HCF = Product of two numbers
Then, N x 75 = 15 x 225
∴ N = (15 x 225)/75 = 45

M

Mahesh Chandra • 6.28K Points
Tutor III Math

12) The HCF of three numbers is 23. If they are in the ratio of 1 : 2 : 3, then find the numbers ?

  • (A) 69, 15, 22
  • (B) 23, 46, 69
  • (C) 25, 31, 41
  • (D) 23, 21, 35
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Correct Answer - Option (B)

Explanation :

Let the numbers are N, 2N and 3N.
Where, N = HCF
Given that, N = 23
∴ The numbers are 23, 46 and 69.

M

Mahesh Chandra • 6.28K Points
Tutor III Math

13) The HCF and LCM of two numbers m and n are respectively 6 and 210. If m + n = 72, then 1/m + 1/n is equal to

  • (A) 1/35
  • (B) 3/35
  • (C) 5/37
  • (D) 2/35
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Correct Answer - Option (D)

Explanation :

We have, m x n = 6 x 210 = 1260
∴ 1/m + 1/n = (m + n)/mn = 72/1260 = 4/70 = 2/35

M

Mahesh Chandra • 6.28K Points
Tutor III Math

15) The LCM of two numbers is 48. The numbers are in the ratio of 2 : 3. Find the sum of the numbers.

  • (A) 28
  • (B) 32
  • (C) 40
  • (D) 64
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Correct Answer - Option (C)

Explanation :

Let numbers are 2N and 3N.
According to the question, 6N = 48
⇒ N = 8 ( ∵ LCM = 6N )
∴ Required sum = ( 2N + 3N ) = 5N
= 5 x 8 = 40

M

Mahesh Chandra • 6.28K Points
Tutor III Math

16) The least number which when divided by 12,16 and 18 leaves 5 as remainder in each case. Find the number.

  • (A) 139
  • (B) 144
  • (C) 149
  • (D) 154
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Correct Answer - Option (C)

Explanation :

Given, a = 12, b =16 , c =18, k = 5
According to the formula,
Required number =(LCM of a, b and c) + k
= (LCM Of 12, 16, 18) + 5

LCM of 12, 16, 18 is
∴ LCM = 2 x 2 x 3 x 4 x 3 = 144

∴ Required number =144 + 5 = 149

R

Ram Sharma • 193.88K Points
Coach Biology

17) The heart rate in an adult person is

  • (A) 50-60 times per minute
  • (B) 70-80 times per 2nd
  • (C) 70-80 times per hour
  • (D) 70-80 times per minute
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Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

A

Ankit Singh • 6.54K Points
Tutor III Politics

18) Which of the following is Justiciable in nature?

  • (A) Fundamental Duties
  • (B) Directive Principles of State Policy
  • (C) Fundamental Rights
  • (D) None of these
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Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

A

Ankit Singh • 6.54K Points
Tutor III Politics

19) From which of the following are the Fundamental duties adopted?

  • (A) French Constitution
  • (B) Indian Constitution
  • (C) Spanish Constitution
  • (D) USSR Constitution
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Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

M

Mr. Dubey • 100.64K Points
Coach Reasoning

20) Find the odd number / letters / word from the given alternative:

  • (A) PORM
  • (B) WVYT
  • (C) KJMH
  • (D) FEJC
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Correct Answer - Option (D)

Explanation :

In all other groups, first and third letters as well as forth and second letters are alternate.

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