991. The diameter of the base of a cylindrical tank is 28 cm and its height is 42 cm. Find its curved surface area.

  • (A)
  • (B)
  • (C)
  • (D)

992. The radii of two concentric circles are 35 cm and 21 cm. If the chord of the greater circle is a tangent to the smaller circle, then the length of that chord is:

  • (A) 70 cm
  • (B) 42 cm
  • (C) 56 cm
  • (D) 28 cm

993. A solid copper sphere of radius 9 cm is drawn into a wire of radius 4 mm. Find the length of the wire.

  • (A) 60.75 m
  • (B) 70.25 m
  • (C) 65.25 m
  • (D) 20.75 m

994. The sum of two−digit number and the number obtained by interchanging the digit is 77. If the difference of digits is 1, then the number is:

  • (A) 67
  • (B) 45
  • (C) 34
  • (D) 12

995. Raju spends 80% of his income. His income increased by 20%, while his spending rise by 10%. The percentage of increase in his savings is:

  • (A)
  • (B)
  • (C)
  • (D)

996. A chord of length 12 units in a circle of radius 10 units is ______ units away from its centre.

  • (A) 8
  • (B) 9
  • (C) 10
  • (D) 6

997. An equal sum of money was lent to P and Q at 8.6% per annum for a period of 7 years and 8 years, respectively. If the difference in interest paid by them was ₹172, then the sum lent to each was:

  • (A) ₹3,000
  • (B) ₹2,150
  • (C) ₹185
  • (D) ₹2,000

998. If a : b = 3 : 4, b : c = 2 : 3, and c : d = 5 : 6, then a : b : c : d is:

  • (A)
  • (B)
  • (C)
  • (D)

999. In triangle XYZ, XY = YZ and m∠X = 78°. Find the value of m∠Y.

  • (A) 28°
  • (B) 24°
  • (C) 34°
  • (D) 39°

1000. ∆ABC is similar to ∆DEF and the ratio of the area of triangle ABC to triangle DEF is 25 ∶ 144. If AB = p cm,AC = q cm and BC = r cm,then DE = ?

  • (A)
  • (B)
  • (C)
  • (D)

Total Quizz:- 2541

Mathematics

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