Maths Practice Question and Answer

Q:

The area of two equilateral triangles are in the ratio 25 : 36 . Their altitudes will be in the ratio: 

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  • 1
    36 : 25
    Correct
    Wrong
  • 2
    25 : 36
    Correct
    Wrong
  • 3
    5 : 6
    Correct
    Wrong
  • 4
    √5 : √6
    Correct
    Wrong
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Answer : 3. "5 : 6 "
Explanation :

the ratio will be squre root of triangle so that answer will be 5:6

Q:

If an item is sold for Rs. 270, there is a loss of 10 percent on it , then what will be the cost price of that item?

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  • 1
    Rs. 300
    Correct
    Wrong
  • 2
    Rs. 330
    Correct
    Wrong
  • 3
    Rs. 240
    Correct
    Wrong
  • 4
    Rs. 324
    Correct
    Wrong
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Answer : 1. "Rs. 300 "

Q:

A line passing through the origin perpendicularly cuts the line 3x – 2y = 6 at point M. Find the co-ordinates of M. 

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  • 1
    $$\left({-18\over13},{-12\over13} \right)$$
    Correct
    Wrong
  • 2
    $$\left({-18\over13},{12\over13} \right)$$
    Correct
    Wrong
  • 3
    $$\left({18\over13},{12\over13} \right)$$
    Correct
    Wrong
  • 4
    $$\left({18\over13},{-12\over13} \right)$$
    Correct
    Wrong
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Answer : 4. "$$\left({18\over13},{-12\over13} \right)$$"

Q:

P is six times as large as Q. The percentage that Q is less than P, is:

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  • 1
    $$63{1\over3}\%$$
    Correct
    Wrong
  • 2
    50%
    Correct
    Wrong
  • 3
    $$83{1\over3}\%$$
    Correct
    Wrong
  • 4
    70%
    Correct
    Wrong
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Answer : 3. "$$83{1\over3}\%$$"
Explanation :

Q:

A milkman has 75 litres milk in one cane and 45 litres in another. The maximum capacity of container which can measure milk of either container exact number: 

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  • 1
    15 litres
    Correct
    Wrong
  • 2
    25 litres
    Correct
    Wrong
  • 3
    1 litres
    Correct
    Wrong
  • 4
    5 litres
    Correct
    Wrong
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Answer : 1. "15 litres "

Q:

Two equal sum were lent out at 7% and 5% S.I respectively. The interest earned on the two loans add up to ₹960 for 4 years. The total sum lent out is 

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  • 1
    ₹ 3500
    Correct
    Wrong
  • 2
    ₹ 2500
    Correct
    Wrong
  • 3
    ₹ 2000
    Correct
    Wrong
  • 4
    ₹ 3000
    Correct
    Wrong
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Answer : 3. "₹ 2000 "

Q: A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively? 2170 0

  • 1
    7:4
    Correct
    Wrong
  • 2
    11:4
    Correct
    Wrong
  • 3
    4:7
    Correct
    Wrong
  • 4
    8:3
    Correct
    Wrong
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Answer : 4. "8:3"
Explanation :

Answer: D) 8:3 Explanation: Let the speed of the boat upstream be p kmph and that of downstream be q kmph   Time for upstream = 8 hrs 48 min = 845hrs   Time for downstream = 4 hrs   Distance in both the cases is same.   => p x  845= q x 4   => 44p/5 = 4q   => q = 11p/5    Now, the required ratio of Speed of boat : Speed of water current   = q+p2:q-p2   => (11p/5 + p)/2  : (11p/5 - p)/2   => 8 : 3

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