If the radius of the sphere is doubled then it’s volume is increased by?
If the radius of the sphere is doubled then it’s volume is increased by?
A. 100 %
B. 200 %
C. 700 %
D. 800 %
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A dealer marks his goods 20% above cost price. He then allows some discount on it and makes a profit of 8%. The rate of discount is:
A dealer marks his goods 20% above cost price. He then allows some discount on it and makes a profit of 8%. The rate of discount is:A. 12%
B. 10%
C. 6%
D. 4%
Explanation:
C.P = Rs. 100
Marked Price = Rs. 120,
S.P = Rs. 108
Discount = (12/120 × 100)% = 10%Barkat is travelling on his cycle and has calculated to reach point A at 2 P.M. if he travels at 10 kmph; he will reach there at 12 noon if he travels at 15 kmph. At what speed must he travel to reach A at 1 P.M. ?
Barkat is travelling on his cycle and has calculated to reach point A at 2 P.M. if he travels at 10 kmph; he will reach there at 12 noon if he travels at 15 kmph. At what speed must he travel to reach A at 1 P.M. ?A. 8 kmph
B. 11 kmph
C. 12 kmph
D. 14 kmphThe temperature at noon in LHR ,Pakistan was 6 deg on Monday ,4deg on Tuesday,2deg below zero on Wednesday,3deg below zero on Thursday, 0 deg on Friday ,3 deg on Saturday ,and 6 deg on Sunday. What was the average temperature at noon for the week ?
The temperature at noon in LHR ,Pakistan was 6 deg on Monday ,4deg on Tuesday,2deg below zero on Wednesday,3deg below zero on Thursday, 0 deg on Friday ,3 deg on Saturday ,and 6 deg on Sunday. What was the average temperature at noon for the week ?A. 14 deg
B. -2 deg
C. 2 deg
D. 7 degA man can row with a speed of 15 kmph in still water. If the stream flows at 5 kmph, then the speed in downstream is________?
A man can row with a speed of 15 kmph in still water. If the stream flows at 5 kmph, then the speed in downstream is________?A. 10 kmph
B. 5 kmph
C. 20 kmph
D. 22 kmph
Explanation:
M = 15
S = 5
DS = 15 + 5 = 20A cistern which could be filled in 9 hours takes one hour more to be filled owing to a leak in its bottom. If the cistern is full in what time will the leak empty it?
A cistern which could be filled in 9 hours takes one hour more to be filled owing to a leak in its bottom. If the cistern is full in what time will the leak empty it?A. 45 hrs
B. 60 hrs
C. 75 hrs
D. 90 hrs
Explanation:
1/9 – 1/x = 1/10
=> 90 hrsExcluding stoppages, the average speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?
Excluding stoppages, the average speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?A. 9
B. 10
C. 12
D. 20
Due to stoppages, the bus travels only 45 kms in an hour (9 kms less). To cover a distance of 9 km at a speed of 54 kmph, time taken
= 9/54 = 1/6 hrs = 10 mins.