Mathematics Test 01

1 - 20% of 250 is=?

A ) 40

B ) 50 ✅

C ) 35

D ) 25

Explanation: 20% of 250 = 20/100 x 250 = 50

2 - Profit calculation= Cost price = $100, Selling price = $130, profit = ?

A ) 45

B ) 20

C ) 30 ✅

D ) 55

Explanation: Given: Cost price = $100 Selling price = $130 Find: Profit =? Solution: profit = cost - selling profit = 100 - 130 = 30 $

3 - 22% of 1100?

A ) 242 ✅

B ) 234

C ) 324

D ) 424

Explanation: 22 percent *1100 = (22:100)*1100 = (22*1100):100 = 24200:100 = 242

4 - The average of the first 10 Natural Numbers is __________?

A ) 5.5 ✅

B ) 6.5

C ) 7.5

D ) 4.5

Explanation: Sum of 10 natural no. = 110 =110/2 = 55 Average = 55/10 = 5.5

5 - Waseem bought a bike for Rs. 78,500 at 20% discount. How much did he save?

A ) 17625

B ) 16625

C ) 19625 ✅

D ) 18625

Explanation: 80 % of total amount = 78500 ,1% of total amount = 78500/80 =981.25 ,100 % ( total amount) = 98125 ,20 % discount = 100% - 80% = 98125-78500= 19625

6 - Waseem bought a bike for Rs. 78,500 at 20% discount. How much did he save?

A ) 16625

B ) 17625

C ) 19625 ✅

D ) 18625

Explanation: 80 % of total amount = 78500 ,1% of total amount = 78500/80 =981.25 ,100 % ( total amount) = 98125 ,20 % discount = 100% - 80% = 98125-78500= 19625

7 - On a Tuesday morning 60 workers could not present on the work. If there are 540 workers in the factory, what percent of the workers were present?

A ) 80%

B ) 88.8% ✅

C ) 80.8%

D ) 86%

Explanation: Total workers present : 540-60= 480 Now for percentage =480/540×100 =0.888×100 =88.8 %

8 - On a Tuesday morning 60 workers could not present on the work. If there are 540 workers in the factory, what percent of the workers were present?

A ) 88.8% ✅

B ) 80%

C ) 80.8%

D ) 86%

Explanation: Total workers present : 540-60= 480 Now for percentage =480/540×100 =0.888×100 =88.8 %

9 - Zohaib spends 600 rupess daily in first 12 days, 400 rupees per day in next 80 days and 300 per day in the next 10 days of the month. If he saves Rs. 4000 in that month, find his average daily income?

A ) 480 rupees

B ) 580 rupees ✅

C ) 680 rupees

D ) 420 rupees

Explanation: 600*12=7200 400*8=3200 300*10=3000 total=13400+save =13400+4000=17400 per day income=17400/30=580

10 - Zohaib spends 600 rupess daily in first 12 days, 400 rupees per day in next 80 days and 300 per day in the next 10 days of the month. If he saves Rs. 4000 in that month, find his average daily income?

A ) 580 rupees ✅

B ) 480 rupees

C ) 680 rupees

D ) 420 rupees

Explanation: 600*12=7200 400*8=3200 300*10=3000 total=13400+save =13400+4000=17400 per day income=17400/30=580

11 - What is the 13% of 400?

A ) 56

B ) 48

C ) 52 ✅

D ) 54

Explanation: 13/100*400= 52

12 - What is the 13% of 400?

A ) 56

B ) 48

C ) 52 ✅

D ) 54

Explanation: 13/100*400= 52

13 - The average of three numbers is 54. If two numbers are 48 and 58. What is third number?

A ) 54

B ) 59

C ) 56 ✅

D ) 55

Explanation: Average= 48+58+x/3 54= 48+58+x/3 54*3= 48+58+x 162= 106+ x 162-106=x X= 56

14 - The average of three numbers is 54. If two numbers are 48 and 58. What is third number?

A ) 56 ✅

B ) 54

C ) 59

D ) 55

Explanation: Average= 48+58+x/3 54= 48+58+x/3 54*3= 48+58+x 162= 106+ x 162-106=x X= 56

15 - On calculation means (average) of 15 numbers was 64. One of the number 24 was misread as 34. What is the correct means?

A ) 73.3

B ) 63.3 ✅

C ) 53.3

D ) 43.3

Explanation: Total number 15 ×64=960 24 was misread as 34 so actual no is 10 more so subtract 10 from 960 which is 960-10 = 950 now divide 950 by total number which is 15 950/15 = 63.33

16 - On calculation means (average) of 15 numbers was 64. One of the number 24 was misread as 34. What is the correct means?

A ) 73.3

B ) 63.3 ✅

C ) 53.3

D ) 43.3

Explanation: Total number 15 ×64=960 24 was misread as 34 so actual no is 10 more so subtract 10 from 960 which is 960-10 = 950 now divide 950 by total number which is 15 950/15 = 63.33