Mathematics Questions and Answers

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Q51
A circle has
  • A 10 sides
  • B 20 sides
  • C 300 sides
  • D Infinite sides
Answer: Option D
Q52
One of the diagonals of a rhombus is equal to a side of the rhombus. The angles of the rhombus
  • A 60° and 80°
  • B 0° and 120°
  • C 120° and 240°
  • D 100° and 120°
Answer: Option B
Q53
A began business with Rs 4,500 and was joined afterwards by B with Rs 5,400. If the profit at the end of the year was divided in the ratio of 2: 1, then the time of joining B was after
  • A 5 months
  • B 7 months
  • C 8 months
  • D 9 months
Answer: Option A
Q54
An agent makes a profit of 20% even after a discount of 10% discount on the advertised price. If he makes a profit of Rs 750 on the sale of a scooter, then the advertised price is
  • A Rs 4,550
  • B Rs 4,500
  • C Rs 5,000
  • D Rs 5,050
Answer: Option C
Q55
If the cost of a pen is Rs 12.60 and the gain was 10% of the marked price, then the marked price of a pen was
  • A Rs15
  • B Rs14
  • C Rs 13
  • D Rs 12
Answer: Option B
Q56
A shopkeeper purchases 11 pens for Rs 10 and sells them at the rate of 10 for Rs 11, and then the profit is
  • A 18%
  • B 19%
  • C 20%
  • D 21%
Answer: Option B
Q57
Mr. Rai bought a machine that was tested at Rs 320. He was given successive discounts of 20% and 10%, and then the price he paid was
  • A Rs 120.40
  • B Rs 220.40
  • C Rs 230.40
  • D None of these
Answer: Option C
Q58
A cup of milk contains 3 parts pure milk and 1 part water. How much of the mixture must be with drawn and water replaced in order to get the resulting mixture may be half milk and half water?
  • A 1/3
  • B 1/4
  • C 1/5
  • D 1/6
Answer: Option A
Q59
The time required so that Rs 450 may increase to Rs 576 (the rate of simple interest being 7% per annum) is
  • A 2 years
  • B 3 years
  • C 4 years
  • D 6 years
Answer: Option C
Q60
A sum of money lent by Han at simple interest becomes double of itself in 8 years. Then the sum wills trible itself in
  • A 16 years
  • B 15 years
  • C 20 years
  • D 24 years
Answer: Option C
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