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 = ?
