1481.
PQ is a chord of a circle. The tangent XR at point X on the circle intersects the extension of PQ at point R. Given that XR =
12 cm, PQ = x cm, and QR = (x - 2) cm, find the value of x.
(A)
11 cm
(B)
9 cm
(C)
8 cm
(D)
10 cm
1482.
Simplify
(A)
(B)
(C)
(D)
1483.
A number is first increased by 44% and then decreased by 30%. The net percentage change (rounded off to the nearest
integer) in the original number is:
(A)
increase by 1%
(B)
decrease by 4%
(C)
increase by 4%
(D)
decrease by 1%
1484.
Write the smallest digit in the blank space of a number 7__7624, so that the number formed is divisible by 3.
(A)
1
(B)
2
(C)
0
(D)
3
1485.
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)
1486.
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
1487.
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
1488.
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
1489.
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)
1490.
A chord of length 12 units in a circle of radius 10 units is ______ units away from its centre.
