Successive discounts of 20% and 15% are equal to a single discount of ---

A 30%
B 32%
C 34%
D 35%

Correct Answer: 32%

<math xmlns = "http://www.w3.org/1998/Math/MathML"><msup><mi>a</mi><mn>2</mn></msup><mo> + </mo><msup><mi>b</mi><mn>2</mn></msup><mo> = </mo><mn>10</mn><mo>;</mo><msup><mi>a</mi><mn>2</mn></msup><mo> - </mo><msup><mi>b</mi><mn>2</mn></msup><mo> = </mo><mn>8</mn></math><math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math> <math xmlns = "http://www.w3.org/1998/Math/MathML"><mn>2</mn><msup><mi>a</mi><mn>2</mn></msup></math> = 18;<math xmlns = "http://www.w3.org/1998/Math/MathML"><msup><mi>a</mi><mn>2</mn></msup></math> = 9 <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x21D2;</mo></math> a = 32<math xmlns = "http://www.w3.org/1998/Math/MathML"><msup><mi>b</mi><mn>2</mn></msup></math> = 2;b = 1<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math> ab = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mn>3</mn><mo>&#xD7;</mo><mn>1</mn></math> = 3
Bissoy MCQ
#গণিত #Standard Bank Ltd #Standard Bank Ltd - Asst. Officer (Cash) - 15.05.2009

Related Questions

একজন চাকরিজীবীর আয় ও ব্যয়ের অনুপার ২০ঃ ১৫ হলে, তার মাসিক সঞ্চয় আয়ের শতকরা কত অংশ?
A ৩০%
B ১৫%
C ২০%
D ২৫%
একটি ট্রান্সফরমারের প্রাইমারি ও সেকেন্ডারি তারের ঘূর্ণনের অনুপাত 20ঃ 1 এবং সেকেন্ডারিতে 20 omega রোধ লাগানো আছে। যদি প্রাইমারিতে 220 V প্রয়োগ করা হয় তাহলে এর মধ্যে বিদ্যুৎ প্রবাহ হবে-
A 0.55 A
B 27.5 mA
C 27.5 A
D 5.5 mA
Afte getting two successive discounts, a shirt with a list price of 150 taka is available at 105 taka. If the second discount is 12.5% fins the first discount?
A 30%
B 25%
C 20%
D 35%
After getting two successive discounts, a shirt with a list price of 150 taka is available at 105 taka. If the second discount is 12.5% find the first discount.
A 30%
B 25%
C 20%
D 35%
The price of a certain DVD is discounted by 10% and the reduced price is then discounted by 10%. This series of successive discounts is equivalent to a single discount of
A 20%
B 19%
C 18%
D 11%
The price of a DVD Player is discounted by 10 percent, and the reduced price is then discounted again by 10 percent. The series of successive discounts is equivalent to a single discount of ----
A 20%
B 19%
C 18%
D 11%
The price of a certain television set is discounted by 10% and the reduced price is then discounted by 10%. The series of successive discounts is equivalent to a single discount of ----
A 20%
B 19%
C 18%
D 11%
The price of a certain DVD is discounted by 10% and the reduced price is then discounted by another 10%. This series of successive discounts is equivalent to a single discount of :
A 20%
B 19%
C 18%
D 15%
Successive discounts of 20% and 12% are equivalent to a single discount of:
A 16.0%
B 29.6 %
C 31.4%
D 32.0%
What single discount is equivalent to two successive discounts of 10% and 15%?
A 25%
B 24%
C 24.5%
D 23.5%

Next steps