Maths Practice Question and Answer

Q: The average of three numbers is 154. The first number is double of the second number and the second is double of the third one. The first number is 3962 0

  • 1
    264
    Correct
    Wrong
  • 2
    132
    Correct
    Wrong
  • 3
    88
    Correct
    Wrong
  • 4
    66
    Correct
    Wrong
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Answer : 1. "264"
Explanation :

let x y and z is three number
x:y
2:1
y:z
2:1
then we can find x:y:z is will be 4:2:1
Then 7/3=154
1=66
then the x will be=66*4=264

Q:

75% of a number is equal to three-seventh of another number. What is the ratio between the first number and the second number respectively ? 

3956 0

  • 1
    4: 7
    Correct
    Wrong
  • 2
    7:4
    Correct
    Wrong
  • 3
    12 :7
    Correct
    Wrong
  • 4
    7: 12
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 1. "4: 7 "

Q:

If $$ {x+3y-{2z\over 4}}=6$$ , $$ {x+{2\over 3}}(2y+3z)=33$$ and $$ {1\over 7}{(x+y+z)+2z=9}$$, then what is the value of $$ {46x+131y}$$?

3954 0

  • 1
    364
    Correct
    Wrong
  • 2
    414
    Correct
    Wrong
  • 3
    384
    Correct
    Wrong
  • 4
    464
    Correct
    Wrong
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Answer : 2. "414"

Q:

A sum of Rs.10600 is divided among P, Q, R in such a way that P gets Rs.1400 more than what Q gets and Q gets Rs.1600 more than what R gets. The ratio of their shares is

3954 1

  • 1
    16: 9: 18
    Correct
    Wrong
  • 2
    27: 18: 10
    Correct
    Wrong
  • 3
    18: 25: 10
    Correct
    Wrong
  • 4
    16: 25: 10
    Correct
    Wrong
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Answer : 3. "18: 25: 10"

Q:

What approximate value should come in place of the question mark(?) in the following question.
635×455÷403=?

3938 0

  • 1
    735
    Correct
    Wrong
  • 2
    795
    Correct
    Wrong
  • 3
    695
    Correct
    Wrong
  • 4
    685
    Correct
    Wrong
  • 5
    715
    Correct
    Wrong
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Answer : 5. "715"

Q:

Direction (66-70): What should come in place of the question mark(?) in the following number series?

10    11    13    21    69    ?

3937 0

  • 1
    382
    Correct
    Wrong
  • 2
    420
    Correct
    Wrong
  • 3
    424
    Correct
    Wrong
  • 4
    384
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 4. "384"

Q: Simran started a software business by investing Rs. 50,000. After six months, Nanda joined her with a capital of Rs. 80,000. After 3 years, they earned a profit of Rs. 24,500. What was Simran's share in the profit ? 3936 0

  • 1
    12,421
    Correct
    Wrong
  • 2
    9,423
    Correct
    Wrong
  • 3
    11,600
    Correct
    Wrong
  • 4
    10,500
    Correct
    Wrong
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Answer : 4. "10,500"
Explanation :

Answer: D) 10,500 Explanation: The ratio of their investments:50000x36 : 80000x30 = 3 : 4Simran's share of profit = (24500x3/7) = Rs.10,500.

Q:

In how many different ways can letters of the word ‘SECOND’ be arranged?

3933 0

  • 1
    720
    Correct
    Wrong
  • 2
    120
    Correct
    Wrong
  • 3
    5040
    Correct
    Wrong
  • 4
    270
    Correct
    Wrong
  • 5
    None of the above
    Correct
    Wrong
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Answer : 1. "720"
Explanation :

Number of letter in word ‘SECOND’ =6
The number of ways can the letters of word be arranged =6×5×4×3×2×1=720

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