In the middle of a round pool lies a beautiful water-lily. The water-lily doubles in size every day. After exactly 20 days the complete pool will be covered by the lily. After how many days will half of the pool be covered by the water-lily?
19 days
30 days
25 days
21 days
A snail is at the bottom of a 20 meters deep pit. Every day the snail climbs 5 meters upwards, but at night it slides 4 meters back downwards. How many days does it take before the snail reaches the top of the pit?
16 days
17 days
Area of a largest circle in a square whith side 14m. is:
154sq m
151sq m
153sq m
152sq m
what is 30% of 1986 ?
595.7
593.2
595.9
595.8
50 times 5 paise for 50 days equals
1250rupees
125.2 rupees
126 rupees
125 rupees
40% of journey is covered in 20min. & 60% in 40 min. if total distance is 120km then find average speed
120
150
130
140
1% of 1354
135.4
1354
1.354
13.54
2 trains coming from opposite direction are 55 km apart and they will collide after 15 mins.the speed of 1 train is 120 kmph what is the speed of other?
90kmph
100kmph
110kmph
80kmph
a 101 digit number has 50 2's in the begining and 50 3's at the end 222222....?.....33333 this nos is divisible by 7 find the 51st nos
2
3
5
7
square root of 3.6 is 0.6
True
False