If the circumference of a circle is 352 meters then its area in Sq.m is:________?
If the circumference of a circle is 352 meters then its area in Sq.m is:________?
A. 9856
B. 8956
C. 6589
D. 5986
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The price of an article has been reduced by 25%. In order to restore the original price the new price must be increased by________?
The price of an article has been reduced by 25%. In order to restore the original price the new price must be increased by________?A. 33 1/3 %
B. 9 1/11 %
C. 11 1/9 %
D. 66 2/3 %
E. NoneTwo pipes A and B can fill a tank in 15 min and 20 min respectively. Both the pipes are opened together but after 4 min, pipe A is turned off. What is the total time required to fill the tank?
Two pipes A and B can fill a tank in 15 min and 20 min respectively. Both the pipes are opened together but after 4 min, pipe A is turned off. What is the total time required to fill the tank?A. 10 min 20 sec
B. 11 min 45 sec
C. 12 min 30 sec
D. 14 min 40 sec
Explanation:
Part filled in 4 minutes = 4(1/15 + 1/20) = 7/15
Remaining part = 1 – 7/15 = 8/15
Part filled by B in 1 minute = 1/20
1/20 : 8/15 :: 1 ; x
x = 8/15 * 1 * 20 = 10 2/3 min = 10 min 40 sec.
The tank will be full in (4 min. + 10 min. 40 sec) = 14 min 40 sec.21345 * 45 = 4270 * ?
21345 * 45 = 4270 * ?A. 215
B. 235
C. 225
D. 255
Explanation:
? = (21345 * 45) / 4270
? = 225What will be the compound interest on a sum of Rs. 25,000 after 3 years at the rate of 12% p.a.?
What will be the compound interest on a sum of Rs. 25,000 after 3 years at the rate of 12% p.a.?A. Rs. 9000.30
B. Rs. 9720
C. Rs. 10123.20
D. Rs. 10483.20
Explanation:
Amount = [25000 * (1 + 12/100)3]
= 25000 * 28/25 * 28/25 * 28/25 = Rs. 35123.20
C.I. = (35123.20 – 25000) = Rs. 10123.20The length of the wire of 0.2mm radius that can be drawn after melting a solid copper sphere of diameter 18cm?
The length of the wire of 0.2mm radius that can be drawn after melting a solid copper sphere of diameter 18cm?A. 24.3 m
B. 243 m
C. 2430 m
D. 24300 mThe diagonal of a square is 4√2cm. The diagonal is another square whose area is double that of the first square is__________?
The diagonal of a square is 4√2cm. The diagonal is another square whose area is double that of the first square is__________?A. 8cm
B. 8√2cm
C. 16cm
D. 4√2cmExplanation:
Area of given square = ½ x (diagonal) 2 = 16cm2
Area of new square =(2 x 16)cm2 = 32cm2
Let the diagonal of 2nd squared be D cm
Then ½ x D2 = 32
=> D2 =64
=> D = 8 cm