Mathematics Questions and Answers

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Q31
If 8 tan x = 15, then value, of (sin x - cos x) is-
  • A 8/17
  • B 17/7
  • C 1/17
  • D 7/17
Answer: Option D
Q32
A man sold goods at a profit of 20%. If he buys it for 20% less and’ sells it for Rs. 5 less, then he gets 25% profit. Find the cost price of the goods.
  • A Rs. 30
  • B Rs. 60
  • C Rs. 25
  • D Rs. 40
Answer: Option C
Q33
What is the H.C.F. of a2b2 c6 b3 c8a4 and a8b6c2?
  • A a4b4c4
  • B a2b2c2
  • C a2b3c2
  • D a2b3c3
Answer: Option B
Q34
In the mixture of 20 kg milk and water, 15% is water. If 5 liters water is added to it, then what will be percentage of milk in the mixture?
  • A 10 %
  • B 20 %
  • C 15 %
  • D 32 %
Answer: Option D
Q35
If income of x is more than 20% of y’s income, then income of y is what per cent lesser than x’s income?
  • A 25 %
  • B 20 %
  • C 16 2/3 %
  • D 33 1/3 %
Answer: Option C
Q36
A man sold two horses for Rs. 6000 each, in this transaction he gets 10% profit in first horse and 10% loss in second horse. What does he get in the whole transaction?
  • A No profit no loss
  • B 1 % profit
  • C 1 % loss
  • D 0.1 % loss
Answer: Option C
Q37
22x = 256, then what, is the value of x?
  • A 4
  • B 3
  • C 2
  • D 3
Answer: Option A
Q38
If addition of roots is, 11 and multiplication of roots are 30, and then calculate the quadratic equation?
  • A x 2—11 x—30 = 0
  • B x 2—11 x + 30 = 0
  • C x 2—30 x + 11 = 0
  • D x 2 + 11 x + 30 = 0
Answer: Option B
Q39
Find the difference in compound interest and simple interest of Rs. 400 at the rate of 5% per annum for 2 years.
  • A Re. 1
  • B Rs. 2
  • C Rs. 3
  • D Rs. 4
Answer: Option A
Q40
Equation 2x2 - 5x + 30 = 0, find the root?
  • A Root is teal and dissimilar
  • B Not real root
  • C Root is real and equal
  • D None of these
Answer: Option B
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