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maths MCQs with Explanations - Chapter-wise Practice Questions

Q. 1 of Quiz- (Que-ID : 1245)

The average weight of A, B and C is  45 kg, that of A and B is 40 kg and B and C is 43 kg. What is the weight of B?

  • 17 kg
  • 26 kg
  • 20 kg
  • 31 kg

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Directions : Ratio and compound ratio

Q. 10 of Quiz- (Que-ID : 421)

Find out the ratio whose value is 2/3 and the antecedent is 18

  • 18:27
  • 02:03
  • 20:30
  • 180:270

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Directions : Compound interest

Q. 9 of Quiz- (Que-ID : 420)

Find the compound interest of Rs. 10,000 in 9 months at 4% per annum interest payable quarterly.

  • Rs. 300
  • Rs. 310
  • Rs 303
  • Rs 303.01

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Directions : Area

Q. 8 of Quiz- (Que-ID : 419)

A rectangular plot is 50m long and 20 m broad. Inside it there is a path of 7 m wide all round it. What is the area of the path?

  • 216 sq. m
  • 1000 sq.m
  • 1216 sq. m
  • 784 sq. m

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Q. 1 of Quiz- (Que-ID : 699)

If 3 men and 4 boys complete a work in 7 days and 2 men and 3 boys do the same work in 10 days . In

  • 5 days
  • 3 days
  • 7 days
  • 6 days

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Directions : Time and distance based problem

Q. 2 of Quiz- (Que-ID : 413)

A train running at 90 km/hr crosses a pole in 10 seconds. What is the length of train?

  • 250 m
  • 150 m
  • 900 m
  • none of these

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Q. 2 of Quiz- (Que-ID : 1246)

The average of following 5 numbers is 8, find the missing number in 7, 5, 3,12,?.

  • 14
  • 13
  • 8
  • 12

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Q. 3 of Quiz- (Que-ID : 1247)

The average of the first three numbers is double of the fourth number. if the average of all the four numbers is 12, find the 4th number.

  • 16
  • 20
  • 18
  • 48/7

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Q. 1 of Quiz- (Que-ID : 740)

A Trader Who Marks His Good Upto 50% And Offered Discount Of 20% . What % Profit The Trade Makes After Offering The Payment?

  • 15%
  • 20%
  • 25%
  • 40%

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Directions : Problems based on numbers

Q. 6 of Quiz- (Que-ID : 417)

If one-third of a number is 10 more than one fourth of the same number, what is 60% of that number?

  • 144
  • 24
  • 18
  • 72

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Directions : simple ratio problem based on 5th standard,

Q. 2 of Quiz- (Que-ID : 948)

There are 120 students in a picnic tour, if ratio of girls and boys is 5 : 7 then how many boys are in this tour?

  • 50
  • 70
  • 55
  • 120

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Directions : Problems based on numbers

Q. 5 of Quiz- (Que-ID : 416)

The sum of three consecutive odd numbers is 20 more than the first number of these. What is the middle number?

  • 7
  • 8
  • 12
  • 9

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Directions : use basic concept of ratio and proportion to solve these questions

Q. 1 of Quiz- (Que-ID : 947)

What number has 5 to 1 ratio to the number 10?

  • 42
  • 55
  • 50
  • 60

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Directions : This Question is based on work and time problems

Q. 1 of Quiz- (Que-ID : 412)

14 persons can complete a work in 16 days, 8 persons started the work 12 days after they started the work, 8 more peoples joined them. How many days will they take to complete the remaining work

  • 12
  • 8
  • 9
  • 5

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Directions : Problem based on ages

Q. 4 of Quiz- (Que-ID : 415)

The ratio between the present age of Sudhir and Madan is 4:5 , if after five years the ratio of their age becomes 5 : 6, what is the present age of Sudhir?

  • 18 years
  • 20 years
  • 22 years
  • 21 years

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Q. 3 of Quiz- (Que-ID : 949)

in 3 : 5 , here 3 is 

  • antecedent
  • consequent
  • means
  • extremes

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Directions : Area

Q. 7 of Quiz- (Que-ID : 418)

If the length and breadth of a rectangular plot are increased by 50% and 20% respectively, how many times will be the new area of the old area?

  • 1 and 4/5
  • 2
  • 3 and 2/5
  • 5 and 1/5

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Q. 1 of Quiz- (Que-ID : 739)

In an election between two  candidates 10% voters doesn’t cast their votes and 85 votes were de

  • 400
  • 600
  • 800
  • 1000

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Directions : Unitary Method

Q. 3 of Quiz- (Que-ID : 414)

When a 192 meter long rod is cut down into small pieces of length 3.2 meter each. Then how many pieces are available?

  • 52
  • 68
  • 60
  • 58

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