Percentage
- A businessman imported Laptops, worth Rs. 210000, Mobile phones worth Rs. 100000 and Television sets worth Rs. 150000. He had to pay 10% duty on laptops, 8% on Phones and 5% on Television sets as a special case. How much total duty (in Rupees) he had to pay on all items as per above details?
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Duty payment
Laptop ⇒ Rs. 
210000 × 10 
= Rs. 21000 100
Mobile phone⇒ Rs. 100000 × 8 = Rs. 8000 100
Television set⇒ Rs. 150000 × 5 = Rs. 7500 100
Total Duty Payment
= Rs. (21000 + 8000 + 7500)
= Rs. 36500Correct Option: A
Duty payment
Laptop ⇒ Rs. 210000 × 10 = Rs. 21000 100
Mobile phone⇒ Rs. 100000 × 8 = Rs. 8000 100
Television set⇒ Rs. 150000 × 5 = Rs. 7500 100
Total Duty Payment
= Rs. (21000 + 8000 + 7500)
= Rs. 36500
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and after spending 75% of the remaining he had Rs. 370 left. How much money did he have?A man spends 7 1 % of his money 2
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Initial amount with the person = Rs. x (let)
After an expense of 15 % 2
Remaining amount= 100 - 15 % of x. 2 = 200 - 15 % of x 2 = 50 = 10 = 22 1 % 15 3 3
After an expense of 75% of it,Remaining amount = 37x = Rs. 37x 40 × 4 160
According to the question,37x = 370 ⇒ 37x = 370 × 160 160 ⇒ x = 370 × 160 = Rs. 1600 37 Correct Option: B
Initial amount with the person = Rs. x (let)
After an expense of 15 % 2
Remaining amount= 100 - 15 % of x. 2 = 200 - 15 % of x 2 = 50 = 10 = 22 1 % 15 3 3
After an expense of 75% of it,Remaining amount = 37x = Rs. 37x 40 × 4 160
According to the question,37x = 370 ⇒ 37x = 370 × 160 160 ⇒ x = 370 × 160 = Rs. 1600 37
- On a certain date, Pakistan has a success rate of 60% against India in all the ODIs played between the two countries. They lost the next 30 ODIs in a row to India and their success rate comes down to 30%. The total number of ODIs played between the two countries is
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Let the number of matches played between India and Pakistan in the first case be x.
Number of wins by Pakistan= 60x = 3x 100 5
According to the question,= 3x/5 = 30 x + 30 100 ⇒ 3x = 3 5(x + 30) 10 ⇒ x = 1 (x + 30) 2
⇒ 2x = x + 30
⇒ x = 30
∴ Total number of matches
= 30 + 30 = 60Correct Option: C
Let the number of matches played between India and Pakistan in the first case be x.
Number of wins by Pakistan= 60x = 3x 100 5
According to the question,= 3x/5 = 30 x + 30 100 ⇒ 3x = 3 5(x + 30) 10 ⇒ x = 1 (x + 30) 2
⇒ 2x = x + 30
⇒ x = 30
∴ Total number of matches
= 30 + 30 = 60
- The value of a car at the beginning of a year is 10% less than the value of the same car at the beginning of the previous year. If the car is valued at Rs. 1,45,800 on 1st January, 2000, what was its value on 1st January, 1997 ?
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Clearly, if the car is valued at
Rs. 90 in 2000, it was valued at
Rs. 100 in 1999.
∴ Value of the car in 1999= 145800 × 100 90
In this way, value of car in 1997= 145800 × 100 × 100 × 100 = Rs. 200000 9 × 9 × 9 Correct Option: A
Clearly, if the car is valued at
Rs. 90 in 2000, it was valued at
Rs. 100 in 1999.
∴ Value of the car in 1999= 145800 × 100 90
In this way, value of car in 1997= 145800 × 100 × 100 × 100 = Rs. 200000 9 × 9 × 9
- What is 20% of 25% of 300?
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As per the given question ,
20% of 25% of 300 = 20 × 25 × 300 100 100
Correct Option: D
As per the given question ,
20% of 25% of 300 = 20 × 25 × 300 100 100 Required answer = 1 × 1 × 300 = 15 5 4
